I find it amusing how people pull up "Naming and shaming is not allowed".
Yes, it's a rule, but is it a worthwhile rule? The response shouldn't be "We don't allow that" repeated several times, it should be "Hopefully someone at least checks out this Gamertag before putting it aside".
[quote user="ChainSmokingBob"]Yes, it's a rule, but is it a worthwhile rule?[/quote]How do you know the OP is telling the truth? He may just be posting in an attempt to get innocent people banned or to slander them.
That doesn't stop it being a good idea to actually investigate people before dismissing the claim.
I don't necessarily think that claims like "Rude message" should be taken very seriously, as there's no way to tell what else happened to provoke it, but if detail of particularly unnecessary messages was given the message could at least be read.
Any claims of cheaters should always be investigated. They can be careful about who they ban, that's fine, but at least investigate before dismissing it and deleting the thread.