There's a few things people do that impact the ability of others to get into the arena.
Logging into an arena to reserve a place for when they will actually play later.. I know of one guy who logs on the minute he gets home from work. However, he doesn't actually play for an hour or more. He just wants to guarantee a place when the arena fills up. I asked him why he just doesn't fly in the other arena, to which he replied, "I don't like the other arena". I translated this into "I can't horde monkey with impunity in that arena".
Seems like a vicious cycle. Can't get in at prime time, log in early. More guys can't get in, more log in early. An unfortunate side effect of arena caps.
The aforementioned downloading of skins should be rare. (no new skins in a long time).
I have no issue with an inactivity timer that boots you if you don't actually participate for 30 minutes.
Think about it. Would you tolerate waiting at the first tee while the guys ahead of you wait an hour for the last guy of their golf party? Would you tolerate some guy holding up the supermarket check-out line holding a place for his wife, who is still shopping? Of course not.
Same thing here... Not playing within a reasonable time? Cya.
My regards,
Widewing