free speech!

What do you think of "free speech" as it pertains to this blog?
We have gotten some pretty interesting comments over the 5 1/2 month history of this blog!
My inclination is to let it all hang out. All comments are allowed, good or bad. However, my feelings on this issue could change if certain taboos were breeched... also i am concerned about the tiresome aspect of propaganda that occasionally appears in the comments... i would prefer that this blog not become a political battleground...
let's have your comments on this one, please!