I am glad they are gone for a variety of reasons, the most obvious is they add extra length to posts.
Sadly, we have some forum members who would want to see how long they could make their signatures. Signatures are supposed to take up a very small amount of "visual real estate" essentially enough to tell the person viewing it a little more about you.
A few posts back in this thread, I discuss setting up a status update and using it as a static page that you could paste the link to it in your signature. The status update can be updated can be updated just as any other forum post can be updated.