Re: any rules for this?

[Loren Wilton]

This looks like a new version of the old Leo pill spams.  Catching those 
obfuscated things gets difficult since the spammers get VERY creative using 
HTML formatting to juggle the characters around in non-obvious ways.

About the best method of catching them currently is SURBL, since they almost 
always come from zombies, but do advertize a pills site.

       Loren