Jim C Hines has answered Dave Freer’s post here: http://www.jimchines.com/2018/01/fact-checking-freer/
Foz Meadows has written a very moving piece here: https://fozmeadows.wordpress.com/2018/01/29/a-personal-note/
There’s a core issue here. Dave Freer appears to literally be unable to imagine the various people he is attacking now as human beings. The people applauding his honesty at Mad Genius, when a simple 2 minute Google search would reveal some of his assertion are demonstrable lies, are actively hiding from truth.