So, yes, I am a reddit refugee. I have played around a bit in lemmy with liftoff & lemmy.world and so far it’s great.

What I’m really curious to know is what is the best way to to find active communities & join them?

If I wanted to find the most active Warhammer40k community, where would I start?

If it is on a different instance, can I still (in theory) fully interact (view, upvote, comment, post) with that community by subscribing to it from my lemmy.world account in liftoff?

If they have in some way federated/blocked lemmy.world, could I create an account directly on that instance, log into it in liftoff as an alt and swap between my accounts to have full access?

If it is 'shadow’banned/blocked/defederated/whatever, how would I tell?

Thank you in advance, I’ve really enjoyed trying to be active here so far and everyone has been super nice