On the other hand, transitioning hasn't been smooth at all for a lot of comunities. The user is loosing access to them by leaving Reddit.
I think that trying to be more proactive on Lemmy by getting those comunities you miss from Reddit to thrive here + becoming a Reddit lurker using adblocks and some of the 3rd party apps that won't be dead in a couple of weeks is the "least wrong" way to make the change if you want to make it gradual.