I have noticed at least two posts by very new members that appear to be links to some sort of commercial sites. One was in the threads about bargains, one was in the thread about kopi/kapi. The one in the bargain thread was about mobile phones and the one in the kopi/kapi thread asked people to send private messages.
ISO, dz and Speculatrix would you have a look and see if I'm just being paranoid? It would be a shame if we had to go back to 'vetting' new members but it might be needed if this is really the start of spamming the forum.