Facebook has only banned the paid advertising of cryptocurrency. Which is fine as I get sick of seeing them when I do occasionally jump on Facebook. You or anyone else can post or share crypto stuff on your timeline so bounties etc will not be effected.
So as long as you don't make a paid ad for cryptocurrency nothing changes.
I feel you. I do love crypto but it's very annoying to see crypto advertisements every time I browse my news feed. I also noticed that my posts on Facebook via Twitter link about ICOs are recently banned. I am not sure if Mark is just following US regulations or banning it for its own coin. Let's wait if it will happen because if ever the latter happens, it'll be a blockbuster.