Recently, we've seen somewhat of an increase in spam advertisements on the forum. People (or bots) post a comment to an article or forum topic that usually seems at least vaguely related to the topic, but is always very short and contains a link to an external site which they are trying to advertise. We delete such posts and ban the users as soon as we can, but you may still sometimes encounter them. Although some links may be completely innocuous, obviously, the security of any site linked to in a spam message is in question. As a consequence, I would advise everyone NOT to follow any link posted on this website or forum, unless it is posted by a user you trust, or the rest of the post clearly explains what the link is for.