Old threads

what we do on the grsec forums is that for 'new' users (registered for less than X days and/or posted less than Y times) we disable the rendering of the url tag (i.e., the url is rendered as plain text, and not lost). this doesn't prevent spamming but is an annoyance for those semi-automated drive-by spammers who want to lure readers to their own sites with a click of a button. and for targeted spams it's hand-to-hand combat as usual ;).