He said the reason, he did it was because Ratimov deleted all his previous feedback. Only the flags he created are left.
I only saw this now. Ratimov indeed
wiped his sent feedback, and withdrew his Flags. I only checked a few of the Flags created by other users, but
it looks like Ratimov deleted his vote on (all of?) those too.
Ratimov seems to have a flair for the dramatic.
Wild guess: did he wipe his Trust list too? That leaves no reason to include him.
Oh? I noticed that he wiped out all of his feedback because I visited his trust page after he's off DT and it looked like this,

but it didn't come to my awareness that he also retracted all of his flags, mainly because the list still shows "created flag" and I didn't dig further. It seems... excessive. I am not sure if it's a good idea or step toward betterment.