108-36.hukot.net seems to be a Tor exit server. While I am all for the philosophy of net privacy, these Tor servers more often than not are used to content spam me. As a result I ban almost all of them. It is human nature, I suppose, to take something that should be beneficial and, using selfish and personal reasons, turn it to a tool of the bad.
Oh well, who am I to judge. This is my site, I ban content spammers, and I therefore also ban Tor content spammers, exit or not.
hukot.net seems to be an ISP from the Czech Republic.