Etiquette Question

Quick question on etiquette - Here's the situation. Was a pretty mellow morning w/little knee sized waves. Everyone is just sitting around waiting for sets to come through. So there's this one guy who keeps paddling around everywhere after every set he sees whether it's close to him or not. For instance, I've been waiting for a few mins and a set comes my way, start paddling, then am about to drop and I see he had snaked way outside and drops in (he was on a 11ft, I ride 9ft). He does this a few more times to other people going way far out and dropping in right by where they were waiting. Is it cool to keep paddling around everywhere after every set right in front of other people?? Normally people just wait in lineup for sets and don't wander around too much. Thoughts?