Spammer are people that are just throwing up post, sending the exact same message over and over again, usually they just copied someone's post from the 1st page of the thread so that they will not sound irrelevant or nonsense, they stop after sending 8 post. I don't know what's the catch, maybe so they can send random PMs to users about their site or products, i don't know.

prove that he's a spammer? You can see the that exact message from page1. And i have read the exact same message from his other post. But you can't find it here anymore cause it has been deleted now and block the user.

if you see some suspicious spammer you can touch the report button and the mods will take care of it.