I know we have the ability to issue challenge matches and create challenge leagues - could there be an option to prevent players from joining leagues in a similar way?

Would it be possible to list player ids in a box and if they try to join they are refused entry?

There are a number of players who have recently joined leagues and played one or two turns. Then they disappear and their plane runs on auto-move destroying the league for everyone else.

I would happily ban some of them from future leagues I create - as I'm sure some players would ban me. Fair enough no complaints from me if that happened.

Just wondered what people thought.