how do I report an account on sale?
I get 3 accounts on sale, and with proof of chat with the account seller.
Open a thread just like what others said or pm a DT directly or just directly click the report to moderator whilst providing links or any other proofs of it.
But is account selling really bad? Isn't it only discouraged, not prohibited?
Everything is correct except about reporting to mods. You should use "report to moderator" only when you see someone breaking forum rules.
Account sales, scams, merit abuse isn't against forum rules, but these things aren't moderated. Account sales is really bad thing and it's discouraged by community.