It depends who you talk to. The only people I know who still use, or don't hold a negative view of, Facebook are my parents, grandparents, and other old people who certainly won't be purchasing Facebook's "cryptocurrency". The vast majority of the young people I talk to, as well as other engineers, have a negative view of Facebook and don't use their services (aside from maybe Instagram). The latter is the group that would potentially be interested in crypto, but they won't be buying it from Facebook. Personally, I hope Facebook fails spectacularly