I like that reminder and short explanation.
Maybe more will help against the rulebreakers ;o)

That's a nice reminder, but I wonder how many would read it :(

Well, I'm previous winner and I actually read your reminder and check myself again through sgtools. But I didn't manually check keys that were in "cannot be verified" section. That was stupid decision because apparently I forgot to activate one of the keys and was suspended. But now I fixed the issue.
Sorry for troubles and thank you for indirectly letting me know about that