Basically I'd liike to think the rule of thumb is; if your sig is distracting from the actual content of your post, tone it down there sonny jim.
On topic, there's an MC, on Rhymesayers, named Eyedea, and he occasionally raps under the name Oliver Hart. In my opinion he's a ridiculously gifted MC with flow to spare and a mean freestyle who writes incredible, heartfelt, darkly funny introspective raps.
Tell me someone else here has at least heard of him?