Comment spam
I've been recieving some comment spam (i.e. porn links) from an account originating from tpnet.pl. Specifically asdl.tpnet.pl and dtvk.tpnet.pl. Subnets are 80.50.117 and 80.50.117. Other webloggers may want to add these subnets to your .htaccess file that in your cgi comments directorie, something like
Deny from 80.50.117should do the trick. Also adding the whole subnet to IP Banning for comments may work too.
Deny from 212.160.79