El Orans:Supporting Members see more than regular members.
Not according to the FAQ:
Supporting Members receive a wide range of account extras that go above and beyond what regular Registered Users get.
You will no longer see most of our advertising campaigns on the sidebars or at the top and bottom of pages.
Your member name will appear in red in all of your posts, and in the "Who's Online" listing (just like how moderators are green and greeters are orange).
Your PM box will double in size, to 1000 messages maximum (all folders combined), and you'll have the ability to PM up to 20 members at once. You will also be able to use PM message receipts and tracking.
You will be granted access to a special Supporting Members only forum for discussions about the board or life in general.
You will be able to setup your own custom user title in your User CP to appear under your name (instead of New Member, Registered Member, Moderator, etc )
A pop3 email account (yourname@scubaboard.com) including 25mb of space, 24x7 webmail access and pop3.