|Don't ask to ask, just ask|
Ok Petruchio. Now that its explained I am fully supportive of this idea. I have posted an updated patch addnewnoteform - (patch) for pmdev that extends it a touch to address the concerns raised by tye and myself and others, as well as adrianhs idea of two tags, one general and one user specific.
In my patch if the special div tags are included by the user in their sig then no modification is done at all. It doesnt add the tag to users without an automatic node signature/template, and it adds a brief explanatory comment telling the suprised user who has overlooked these threads what to do about it all :-). For instance I would see something like:
Perhaps I should have explained in more detail in the comment, or even better when it is applied it should refer directly to a node/thread on the subject.
I will see what I can do to make it more consistantly provided, but this at least will avoid annoyance and surprise with regard to the new feature. (Which I dont think should be removed just because it isn't consistantly applied, its arguable that signatures should not be removable from top level posts and even if that argument is lost this is still a good first step I think.)
First they ignore you, then they laugh at you, then they fight you, then you win.