re: What's the make up of the board? Seems like it's about 80% Bama/LSU...20% everyone else.

There is an ongoing anchored survey on the home page that might help.

Current results:


Current Users on SECRANT: 168271
Sample size: 248

-8% margin of error = 99 % confidence level
-6% margin of error = 95% confidence level
-5% margin of error = 90% confidence level

So, it looks like high end and low end for top three secrant fanbases would be:
o 33.8-17.8% LSU
o 22.9-6.9% UA
o 19.7-3.7% AU
With the Ole Miss and aTm looking to round out the top 5.

To the OP, it is 99% likely that no more than 56.7% of all registered SEC ranters (not accounting for alters) are LSU/Bama fans.