... But if indeed the invitations are the only problem, then this is a convenient quick fix for now.
This can not be true. You suggest that the manager shall start PL with as many teams as possible and when it's almost full, he shall turn the whole league off so he can start a new one and turn it off and so on ...? As a solution to stop invitations!
I think Unkel has a good idea. He might have seen it in Hattrick and liked it?
You can just start a league and never send any invitations. Your league will never really has to start, no?
I just said that it's a good idea to have an opt-out button in my previous post. This here was a suggestion for a stop-gap solution until it's implemented.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."