It will be difficult to compare such things because there is no special percentage for bounties from 2017 until now, but that has changed since investors no longer trust new projects because they often fail and make them disappointed with failed investments, of course they will lose a lot of money.
So now investors are more careful in choosing new projects to invest in, right?
Yes thats correct. Investors probably learned their greatest lesson that there is no permanent in this world. They probably invest on some ICOs that they would not expect to ruin or wasted their money. Lets agree that msot of them got loss and bounty hunters are dont losing any money while them suffer a huge defeat.
Bounty is not as precise and reliable today compared to previous years. But dont give up on looking for those worthy campaign. Maybe if you been a hunter for a long time you can recognized already which to promote.