Recently, many new users have been including commercial links in their signatures, which is strictly prohibited in this forum. So far we haven’t taken a lot of action on the matter because the posts had some substance, but things are getting out of control. Us moderators are not stupid, and we do notice when a user joins just to spam through his signature. Users doing so will be warned to change their signatures. If the action persists, the user will be banned (I banned the first user for this practice today).