Users should come to the Embassy to make all suggestions, bug reports, complaints, and anything else relating to the forum itself. The Embassy Control staff will take all issues seriously. Or kill you. One of the two. Possibly both.
I was considering that earlier, when I noticed Buzzed had a new sig, without the horizontal rule. I think the reason we don't have it built in is that by the time I'd originally thought of doing so, I'd already taught everyone to do it, so you'd have double rules. I would still vote for its automatic inclusion, though, if it were ever put to a vote, and I would definitely be willing to do the coding.
Looks good. A suggestion: don't put an [Enter] after the _. That way, the sig will /immediately/ follow the horizontal rule, instead of dropping down one line; obviously, it's up to your aesthetic tastes, but I thought you might like to know.