Pretty much on the same page as Ccooluke here.

That said, I have no problem letting you guys know how I choose which releases to regrade, its pretty much a combination of three factors, how popular a film was theatrically, how much I think regrading a film benefits its colours/image dynamics and of course how much I personally liked the film.

In terms of selecting which releases to create higher bitrate releases of based on imdb scores or my personal preferences, if I did that I would feel like I was being kinda snobbish and forcing my own preferences or the preferences of imdb voters onto everybody and that’s not something I want to do.

The 11gb Transformers The Last Knight regrade I did seems to be the most popular release right now in terms of number of seeds but if I was prioritising what releases get lrger versions using imdb ratings it would never have got a release larger than 3gb, yet the larger release is clearly very popular. I think using the torrent statistics to judge which releases get larger versions is the right way to go.