I, too, like most of the replies in the thread can't say for sure what Facebook or Zuckerberg's real plan is. They have been quite fickle-minded about what they want to do with cryptocurrency-related activities. Especially, if we would recall, they have banned all cryptocurrency-related postings in their platform that affected many bounty programs in a major way since Facebook campaigns have been part of the bounty programs ever since. However, if it's really true that Facebook will join the fray, then surely, it could help the cryptocurrency market a lot, since Facebook is a big social media platform.