My wife and I get a variant of this. We recently moved to a fairly non bike friendly area of Florida from California. When I first got here, I was scoping out the the LBS's and was talking to one of the guys in the shop. I asked him about local biking here. One of the things that came up in the conversation was the large proportion of homeless folks who bicycled, and how aggressive and sloppy their riding was in the middle of traffic. I thought this was horrible news because it added yet another HUGE layer of being "other" to being a cyclist around here.
After riding up to a store, another patron (elderly woman) stating that she was very scared for me riding on the street "like that" - meaning using the painted bike lane versus the sidewalk.
Sounds like some of the posts from smug BF self proclaimed experts and übercylists on A&S (as well as a few on this list) ranting about the bicycling üntermench who don't ride in the Bicycling Correct™ "approved" fashion; or horrors
, doubling down on those lowlifes who dare to ride on the sidewalk for any reason or without an electric/reflective protective bicycling outfit.