It's called spamming, in this case with a combination of topic hijacking (off topic) and nonsense-posting. Costa07's reply in this topic is a nice example, to the point of being too ironic for my tastes. Just looking through the last day's worth of his posts I have deleted 80% of them as pure nonsense or off topic.
Costa07: Shape up, people don't come here to read your random thoughts on anything and everything; for that I suggest you set up a blog somewhere. If moderators are forced to repeatedly clean up the same kind of junk from the same person, you will be banned simply to save effort, regardless of whatever contributions you make in your other posts. Also, your spelling and writing style is quite frankly horrible. You have been warned.
