Comment System on the Fritz

I don’t know why, but the comment system on my web page is not working. (I’ve requested assistance from an expert.) Every comment is rejected as follows:
Comment Submission Error
Your comment submission failed for the following reasons:

Your comment was denied for questionable content.

Please correct the error in the form below, then press Post to post your comment.
I’ve tried to fix it and will continue to try. In the meantime, people who want to share their views with me can do what one of the charmers at (a fellow named Matt Barganier) did and send me notes starting with “Your comments board rejected this post (did you program your intellectual cowardice into it?), so I’ll just send it to you.” (His last email ended with “It’s 6:00 pm Friday out here in flyover country and I have a life, so I’ll let you get to your dinner with Dick Cheney or Condoleezza Rice or whomever.” I shared that over a glass of port with Dick and Condi, who got a little chuckle out of it.)

I’ll try again to see why the system considers all comments as having “questionable content.”