I hate that I show under "more replies" in some channels and I don't even know how to become a member. I can only see follow

reply guys

Food

crochet enthusiast, overthinker, smartpants

/replyguys /food /itookaphoto /downshift /farcaster /dailyaffirmation 
these are the ones I can remember

Best way is to tag the owner of the channel asking them to send you an invite

Well you found me! Funny tweets! Football space

Chad like guy | Node runner | Calisthenics athlete | Degen survivor

So following the channel doesn’t make you a member?

I think you just post under the channels a lot and if they like your stuff they add you