No it was indeed a SPAMMER. We have never had any 'hacking' issues here ever. I suppose it's possible but I doubt it. It was a brand new member who had a typical spammer profile.
You can reasonably assume that ANYONE who has just joined and immediately posts messages in multiple places or to multiple people (and/or who's profile looks like a personal ad or doesn't make sense) is a SPAMMER. Not just 'suspicious' -- it happens now and then. It almost always happens overnight and I will always take care of it in the morning.