Posting your IP is really a minor security risk at worst. Trust me, neither hackers nor crackers need to know your IP to target you, and most attacks are automated scans of thousands of machines at once. The only real risk would be if you had a static IP, and had known poor security (worse then usual) and something desireable, such as a Cray or a fractional T3 or better.
As to the ban, we've had to do a ban on all users of dyn.centurytel.com (which is your subnetwork and your ISP) because of repeated abuse by a single user over the last year or more, who is coming and attacking us on a regular basis. THankfully, we have recently been seeing Centurytel seperating various parts of their network more, so hopefully that will not be needed much longer, and we can be more specific and just ban one smaller subnet.
I am sorry for the inconvenience, but until service providers either learn to make it possible to narrow down the range of connections abusers will use (and it's not a very technial one, is almost always in that range or at one of two public libraries), or actually respond to our abuse reports, I have no intention on lifting the ban, as while it would be convenient for you, one user, it would subject the 80 some in the channel at any one time to more attacks.