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I'm very happy to see that you guys are giving you strong answers, I'd like to do the same when they get to my post but I don't have enough SP. But I'm sure they'll think twice before they put spam back in here again ;)

This is true, you see many times that they comment on a post and it does not have minimum coherence with the content, always before commenting it must be read, interpreted and analyzed; After this, I can give your point of view.