Yato

A person who gives off an impression online of being older than they actually are. Usually pretty immature but can give surprisingly good advice at times. Can be extremely pushy with some pieces of their advice, to the point of telling someone in all caps to follow their advice, though this is uncommon.

" I understand him, sure, but he's such a Yato that it's hard to actually take what he says seriously since he's always pretty childish."