Does anyone know what's happened to.....?

[knobster]

I'm not sure if this is the right place to post this (come to that, I'm not sure there IS a "right place") but does anyone know what's happened to Will100?
He's been a regular poster on here (and other sites - I also used to confer with him on flickr) for many years, but he suddenly stopped posting here about 5 or 6 months back.
My apologies if this type of request isn't acceptable.