Childishness in Adults

A few days back, I was just browsing Google Groups. I was in the comp.databases.oracle.server or some such USENET group. I saw an ad in the posts, advertising an Oracle m_onitoring tool. The poster was so blatantly selling his product that it was disgusting. And as expected people had reacted strongly to that post. I don't want to name the product or the poster but he was so childish in behaviour. I mean he was swearing and making fun of his own customers. A.D. you badly need a PR rep. Also it seems that his product too wasn't worth using. But the fellow wouldn't take any criticism at all. Forget criticism, he just couldn't talk politely. But he was continuously getting free publicity coz the others wouldn't stop arguing with him.