No, of course not. If you’re using Lemmy as a “protest” instead of thinking that it’s a better platform, it’s totally ineffectual and you’ll go back to using Reddit sooner or later. Personally, I think that the fediverse is a more compelling idea than the traditional internet, so I’m sticking with Lemmy for a bit in one form or another.
In terms of Lemmy, I’m just on Lemmy.world, I have no real reason to sign up for something else. I’m also on Mastodon, though.