It doesn't seem to me like it's the end of bounties, what makes you believe the scam projects will stop; AFAIK they still get bounty hunters to advertise their projects, and investors to invest in their scam or shitcoin projects. They can't stop when it's still working for them. Use the search button to find the long list of ICO scam projects, and also search for threads users have complained of exit scams, fake volume, pump and dump, locked tokens etc, it's a very long list, but it didn't stop them from getting victims, so imo, it won't stop now.
It is not new, it's as old as when 99% of ICOs turned scams.