what happened to the SuSE folks on this list?

Hi list, when I was regularly listening and to some extent contributing to the discussions on this list a couple of years back I remember that there were some folks from SuSE who regularly contributed, mostly with technical help. I seem to remember that Lenz Grimmer and Michael Hasenstein were regulars here. What happened to them and others who don't seem to be active on the list anymore? Best regards, Alex.