Regarding the size of the post box, there are several reasons it is the size it is. The first is that you have to accommodate people using a 640x480 screen. I've got 19 inches of NEC love at home, 21 inches of Sony love at work, but not everyone does.
Second, the size is kept somewhat small because it suits the kind of conversation we normally have. I don't want to discourage people to make short posts, but I don't want to invite novels, either, you know?
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Jeff
Webmaster/Admin - CoasterBuzz.com