coothead, I did the same steps as you last week (and I strongly believe we reported the same members from India), but these members are still here. My only possible guess is that forum administrators don't remove these members and their postings to keep the forum looking bigger and more active (let's face the truth - this forum isn't as active as other web development forums around). While such a strategy has its own benefits for sure, the biggest disadvantage is that such spam activity will prevent "reputable" persons from registering here, and/or some registered members (who post high quality messages) will go away after some time. There are many examples on that (previously popular forums ruined by fake members posting crap content).
Of course, the forum is a property of administrator(s), so there's little we can do and our only solution is to respect the decision of forum owners at the moment.