There doesn't seem to be a way to report spam posts. A six-day old spam post by "zhensan" has not been deleted from the Hebrew typography forum, and now a large number of spam posts by "Soares111" are present across a number of forums.
Typophile
Reporting Spam
Use the "feedback" link at the bottom of the page. I found Zhensan and shut him down. Thanks.
Spammer: http://typophile.com/user/180365
I just sent that same one to Jared a few minutes ago, Jabez, He will soon do his thing and zap her out ;-)
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