So i just got on and i can't send chat messages? i haven't been on in a while and i've never been muted so i'm a little confused? can someone help?

Can someone explain why i get random claim blocks while playing the server? i'd like to know how to get them.

So i've read the rules but still am unclear on something, so is it against the rules if i use an alt account to afk at my base for grinding purposes? if not i'll stop i just wanna know because i don't wanna be doing anything wrong.