My 21 month old is still in a crib (cot). He's 99th percentile for height and he's still comfortable. Rolling or turning up against the bars has never affected his sleep.
Business as usual for the subs I frequent. I wish they'd move over to Lemmy but the infertility/IVF group is a super tight knit community and likely won't move over. I've known most of the users for 5 years. If it weren't for them I'd have deleted my Reddit account but all I did was delete the official app (I had the Reddit app and RIF).
I'm looking forward to when mine switches out of his crib to a twin sized floor bed because I finally might be able to get some cuddles in. It might also make it easier for times he's sick. He doesn't like sleeping in our bed (for now - I'm sure those days are coming).