Just that really.
I lurk more than I post, and am well aware of the cycle of a couple of odd days, followed by a day or two of "MN isn't what it used to be..." but, there seems to have been more consistent nastiness over the last two or three weeks.
Is it coincidence that many of my favourite posters, the ones who make me smile, (SarahStratton, SuePurblyBilt, Pagwatch, BoF, to name a few) have either stopped posting or reduced their input considerably?