You don't have to be a competitive battler, you just have to think about what the post actually contributes to the topic.
Like, sharing optimistic messages is great and all, but when the discussion is about a game release or league highlights, you know, that doesn't really... relate.
Saying 'jesus is the answer' to someone looking for something in a game doesn't help at all.
Posts like these that are off-topic or don't add anything to the discussion, especially when they're only a few words long, do little but clutter the forum, and in most web-communities, including this one, it is a rule of general etiquette to make more substantive posts. You're not the only one who's made these mistakes, and you're not the only one on mod-preview. But it is something to be worked on.