Can't really blame these people, can you? From what i've gathered from browsing this forum and forums about "how to make BTC" sort of thing, signature campaing ads are what paids better. If there were other ways for normal people (what one would call, the 99%) to obtain BTC besides risking actual money, then maybe, maybe the price of Bitcoin wouldn't be tanking as we speak. The Joes of the world are never going to risk their hard earned wage money in this, and without them Bitcoin will never take over. "Who cares if I have to work for Mr Rothchild or Mr Rpietila or whoever won the early adopter lotery? im going to be a wageslave anyway."
If you are in favor of earning money via sig campaigns, you should be thanking me. Dealing with these types of spammers and attempting to curb this type of behavior will allow them to continue. People like the OP, who had ~50 accounts (I lost count) are the ones who are going to be the end of sig campaigns if we can't stop this type of behavior (ending sig campaigns or restricting them somehow isn't out of the question even though it's been allowed so far). I'm guessing he only asked about the one because he didn't realize most of the others had been banned as well, and he also wanted information on how to avoid getting the rest banned.
I don't care about multiple accounts themselves. You can post on as many accounts as you want, and many do have multiple accounts, and I've left many alone because while they post on multiple accounts, they don't let it degrade their post quality. Why they post on multiple accounts I don't know, and I don't care, it's none of my business what they do and why, as long as they aren't breaking the rules.