Cheaters - I agree on that first time poster stuff, he's exactly right too. My buddy who travels a lot found this out the hard way, they froze his account for this same thing. From time to time they will freeze your account for other things too, not sure what prompts it but usually they release it after a period of "investigation".
Anyway to answer your question no you are not the first one (and won't be the last) but it does not necessarily mean you are doing anything wrong, or that you are in trouble. Lot of reasons they do it.