-blows the dust off of this post- I've had my eye on this thread to see what other floofs might be thinking on it, but it seems no one is biting yet.
I will say, it's certainly an interesting idea. I personally love colors, and I myself had to go into the hex codes to grab the shade of blue I loved most, and I still have to type in an odd code to get it every time I post (all 1,000+ of them D8).
So, it certainly would be a nifty little tool.
Although, the question is how much work it would take to install it (since Red and Raz would be the only ones ahead of that one, and they certainly have enough background and foreground work to do), and whether or not there is a plugin compatible with SMF, which is the type of forum we use.
I personally don't think this is a dire need, but it is a nifty idea.