I've seen players that will open the lobby to "anyone", yet continually boot people without a word. It's happened to me plenty of times.
Now, I'm not talking about the L1/150s who literally have wet ink in their e-mail from the sign-up. I've been playing for a while, average in the 70s, am to Pro tier, etc. I've been kicked by people below me.
I would like to see this remedied. Perhaps if you boot 3 times/people before you start your game, you're forced to sit out 5-10 minutes as a small punishment. I mean, let's face it - if you're booting a ton of people when you claim it's open to "anyone", you really don't want to play that badly, do you?