With the advent of Reddit going public and selling user data an opportunity has arisen. I still consume Reddit from time to time and noticed in the threads about these things that a lot of displeased users were there. But when they ask what alternatives there are, lemmy is barely mentioned at all. So if you’re still on there, this is a chance to educate others about the fediverse and alternatives.
Also people could be misled into thinking it’s a “free speech” platform (and end up attracting the people we really don’t want), or end up thinking it’s “complicated”, both of which would not be desirable.