The last time the bounty is attended by a very large number of bots and they are no good there. Because of this, many projects refuse to bounty.
There are many techniques to avoid bots in a bounty company. If the developers give this question a little of their time, then there will be no bots. It's not a problem.
To fight bots you need to write a bot and the problems will be solved. I do not understand why startups collect millions, and spend a few hundred dollars on their protection can not.