Then I'll throw in my vote for dynamic sigs, if it's not too difficult.
My concern is not so much about whether sigs are dynamic, but how big they are. Especially if we allow for image sigs. I hate it when a sig image is larger than the post. You wouldn't write a letter and sign it with a signature larger than the whole letter, would you?
Of course, images relates to items, which is another series of issues altogether. I like the idea of requiring an item for functions like images (it encourages daily posting to earn enough Gold, and also then newbies can't abuse images), but for the regulars already used to them, I may just give them the Images item. It may not make up for the lost posts but it's something.
