I think you're overthinking things here Gimo, The likelihood of getting in trouble for a forum avatar you don't have permission for is very slim.
I agree. I don't know how often this rule is enforced in the UK, but I imagine getting any kind of repercussions for using an image on a forum is unlikely. Aren't there American laws for copyright as well, though? I don't know enough about this but I wouldn't worry too much! @Gimo I do think it's good to consider permission regardless of laws when it comes to avatars though. I'm an artist and I know I'd be sad if someone used my image without asking...
As for the delay of the merge... It's sad, but I hope this means there will be less bugs and problems once it happens. I remember the day Europeans could no longer create accounts on GMS and I was so sad I could no longer recruit my friends irl. I hope more start playing on the GMS servers and that the community grows! /optimism end