It is always disturbing when someone has to come in and say well I will keep blasting light at people because I want to do it. Because nobody has made you aware of your intentionally dangerous lighting situation in that situation doesn't make it safe. My eyes don't like a bright flashing light and there are plenty of other people who don't either and some who will get seizures and epileptic fits or aren't skilled riders who will get distracted and crash.

Iif you want to have a bright flashing light then you should point one at yourself as well so you have the same experience as everyone you are subjecting your light to. Having to close an eye and look away is dangerous, extremely dangerous. I am lucky enough to be a decent bike handler and haven't yet gone down but I am sure one day that will come.

I get there are manufacturers who make lights that blink and flash and don't really care, in the end they are in it to make money and if people will buy them.

A light shouldn't blind someone it should allow them to know you are there if they are going to look at it. If you are desperately needing a flashing light use something that isn't a white light try a soft yellow light if you really really need it but nobody else needs your bright flashing light.