Well, I have this called soft spam and hard spam. Soft spam is just a joke that doesn't really have anything to do with the topic, and has the purpose of making people laugh(although it sometimes doesn't). This should not be worth a warning, it's just a joke. Loosen up peeps
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Also i don't think pointless messages with really no content to it should be warned either, unless it goes on.
But hard spam is when people really annoyingly post something stupid in capital and acts like a jerks. This should be warned.
But i honestly don't think a little spam ever hurt anyone.