>I would say, judge it case by case. However I would not allow links with a meaningless heading pointing to very discussfull sites and proposing such 'offensive' lnks as a part of the question/answer routine I would ban. Maybe difficult to describe what is acceptable and what not. My suggestion, make it as global as possible and play, we call that in Dutch "screaming mouse". (Act upon a scream of the mouse only)

That would require someone to monitor every changes when someone will update his signature. Are you volunteering for that? lol

There is no fancy way to know if a link is good or not. And, even if it can be judged as meaningless for one member, it can be judged as useful for another. You have seen by now that we have all kinds of opinions in this thread in regars to this topic.

So far, for things to help in regards to that, I have taken note to highlight more the signature area and validate against only links for a signature.