We could say that the pro-evolution bias of Moderators who are evolutionists is driving these alleged persons away.
Here is a list of people who are suspended (in recent history):
-messenjah of one2 (along with various multiple registrations)
catman62@bellsouth.net
DR Adequate
Ihategod/Vashgun
jar
John A. Davison
jordo
Richbee
saa_gomez
susan8800
At this time, plenty of anti-evolutionists retain their permissions to post here. They are rarely given indefinite suspensions, and as you know through experience, many of those indefinite suspensions are lifted after requests from the suspended member (via email) or people on their behalf.
If you think any of the above deserve re-instating then make your case. However, your overall point is without base unless you can advise me of a creationist-run board (that is still being moderated by creationists) that has a more lenient policy regarding their 'opponents'. Really - I'd like to know, I'd probably sign up. As it stands I fear getting indefinitely banned without warning as I have at other creationist run boards.