Some could say that knowingly advertising a scam is a crime as well. In many countries including the US people who help a scammer obtain more clients to steal from are treated like associates of that scammer if you can prove that they knew about the scam and profited from it. In this case they know about it because they're getting red tagged and they are profiting because it's one of better paying campaigns on this forum.
Their reputation has already gone so bad after getting the so many red tag that it is proven that they are scamming their customers. There is plenty of evidence in this forum itself that is enough to call 1xbit a scam. But sadly 1xbit is continuing their signature campaign on this forum and if they spent the money they are spending to run this campaign, all their complaints would have been settled.