On My commute which is mostly on a MUP, I must say 95%. Too Fast in crowds and pass too closely too fast and do not announce their presence.

Can't say I've ever had a negative encounter with one. The rare issues I've experienced have mostly been roadies in a pacelines.

It's a very subjective question, not liking what someone does, being startled because one isn't paying attention, overt hostility, needing to take evasive action, and actual incidents are all different things.

I suspect most answers, including mine will be a reflection of the posters prejudices rather than the truth.

I'm curious if you actually encounter enough of them to make a sweeping statement like that.

I commute in the suburbs, so rarely do I encounter a fellow cyclist, let alone someone on an ebike. I think I thought I saw one once out of the corner of my eye one time going the opposite direction, but it was dark, and when I glanced back he was gone.

Rarely. When I have seen unsafe riding involving e-bikes, it's been the riders drafting the e-bike rather than the e-bike itself.

Too subjective to provide a meaningful answer. Everyone has a different idea of what's safe. And different skill levels, different conditions, etc.

Safe is a relative word, and we all have different tolerances for danger. As an example, I consider driving the wrong way on a one-way street to be a dangerous thing to do. I see people doing it every day on their bikes. However, I won't claim that they come very close to serious collisions most of the time.

Very subjective, but I cannot remember seeing a commuter behaving in a dangerous manner.

On my commute, it is easy to spot the e bikes. They are flying and do not slow down. When they are approaching, I need to be careful in the event that they will be passing another bike or runner and veer into my lane. I need to slow down and make sure that they can pass safely because they will not slow in order to pass only when it is safe. It is rare for a rider on an electric bike to slow down even in a congested area. The last few miles of my commute is on a heavily used section full of families, pedestrians strolling and parking lot entrances. Only someone with little experience riding a bike would think it ok to ride at 15-20 miles per hour swerving between kids on 16 inchers and dog walkers using extend a leashes or racing through the exit of a parking lot where happy hours are popular. The 10 percent that ride e bikes safely is an exaggeration.

edit: The difference in behavior of e bike riders and cyclists is very noticeable on my commute. Of course there are the "racers" on road bikes who use the MUP for "training" and the "kid" with the Beats carving Ss across the whole path. But these are 1 in 50 and not the 9 out of 10 regular e-bike riders on my commute.

Whenever I see a paceline I automatically assume the worst of them...... I can't help it even though I know it's irrational, prejudicial, immature, and simply not true.
IMO, if one sees an entire group in a overwhelmingly negative light it's time to look in the mirror because that's most likely where the real issue is. It's not easy to admit the faults of others might actually be our own.

It might not help, but try seeing them as people rather than what they're riding, talk to them, you'll probably find out they're OK.

I too commute in the suburbs and see few cyclists. Only met one e bike rider in the past 11 years. I watched him slowly catching up to me in my mirror as I climbed a hill, which baffled me because he didn't appear to be struggling!

It wasn't until he was next to me that I realized he had a motor. Cresting the hill, we rode side by side and talked. After a couple of minutes I said bye and left him behind me. I guess his bike wasn't all that fast or he didn't care to speed. Seemed plenty safe to me.

Edit: So I guess in my experience, 0%.

Not an e-bike, but as I was leaving the office the other day, I was waiting at the light to cross a very busy street. A guy came out the garage behind me on a bike, rode at full speed across the street running the light and then turned left and ran another light.

What % of e bike commuters operate in unsafe manner?

Probably about the same percentage as that of regular riders that ride unsafely.

99%...I know that sounds harsh but that's what I noticed over the last few years.

I honestly believe some people are just making things up with the hopes of creating an issue. In the US, Ebikes just are not that common. Therefore, very few people are likely to have all that much experience seeing them.

In Winter - low percent (hard core commuters know what they are doing)
In Spring - a bunch (newbies giving it a try)
In Summer - average (novices have gained road savvy)
In Fall - everyone's unsafe because students come back to University driving by text commands

I think some of the responses might be off given a lack of noticing the "e" in the OP.

Not making things up. I guess here in Los Angeles they are more popular. And becoming more popular since the Gov. changed the law to make it legal to ride an electric motor bike on the bike paths. I have never seen an e bike on the road. I only encounter them on my commute which includes about 14 miles of bike path where they must feel more safe (and make me feel less safe). I hope these folks have a non-catastrophic and enlightening moment that informs them that their riding habits are dangerous and consequently they modify their behavior.

I am sure that some folks, and I know your area does have more ebikes, are reporting what they see. I am convinced some are just trying to stir things up. Who is who??? Only they know.

I saw one about a year ago. They haven't caught on here yet. But I don't see more than a handful of commuters on conventional bikes.

I've also only ever seen one, and him only once. Extrapolating wildly from that encounter, they're all perfectly all right.

I've noticed a nonzero percentage of A&S riders come to the Commuting forum to start troll threads.

49%.

The non-e bike number is about 46%

Wasn't it 49.2% and 45.9%, I sure would not want you to be estimating....

78.3% of all statistics are made up.

It is because, behind MTBers, we are the coolest of all bikers. And, like little kids who want friends and are unsure of how to make friends, they behave badly hoping to get some attention, given bad attention is better than no attention...

Please note, this is meant in humor for those who are thinking of trolling...

"We" being commuters? If yes, I'd say we are the coolest. Many of us regularly ride on busy roads during peak periods, in all sorts of weather... something most other riders fear and avoid.

It seems this may have played out on a much larger stage last year.