If you're too stupid not to check TWO windows then to be honest, you're the problem.
This has been a debate for years, scamming at duel arena is more relaxed than it used to be. Every 2nd report was a d/a scam. I'd be flooded with PM's when logging in... Now you havethe opportunity to very clearly see which rules are checked on two windows. It's not hard.
I don't agree with any of your suggestions.