Wow. You totally misunderstood what he was trying to convey to you people. Don't be stupid and misinterpret what other people are trying to say.
In no way is he "threatening to leave this forum because he's not getting his way". He's just confused about why his posts aren't showing up, and seeing that they weren't he just decided "well, if my posts are being posted, then I should stop wasting my time here."
He made this post to ask for someone to delete his account, and he in no way did it threateningly, or in a bad manner.
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Sorry I probably overreacted as well... but you totally misunderstood his post.