Well, if we take everything out of the context nobody will ever be guilty or responsible for anything. The fact that you present the idea of posting everything that's related to CS:GO as being anything but idiotic is a bit ridiculous and unrealistic, don't you think?
"He can post whatever on his mind that is related to cs go"
- Of course that he can and everybody has the rights to do as such, but should you? Imagine everybody crying about their low tier match making results by creating threads about the matter just because "they can". Or even "better", let people start whining about the cheating issue that's related to the professional scene and start making threads with aimlock clips accusing every pro of cheating? Why not? It's related to CS:GO so we can make such topics, according to your logic you've just presented.