fronzelneekburm: So far I went for the "fix your shit and you're off the list"-approach, I don't really want to punish those companies who ultimately decided to put things in order and put them next to other companies who clearly can't be assed.
This is my thinking too. I mainly use that list to check whether the GOG release is (still) missing something important, not as a wall of shame for past "crimes" from here to eternity.
I take it for granted that GOG releases will pretty much always play a second fiddle to Steam releases, unless it is a CDPR game. If the meaning is to list (and keep) all games and publishers here that consider Steam more (much more) important than the GOG release... then yeah, i guess the list would be quite long indeed.
So I am more interested to see cases like "the publisher just doesn't care anymore apparently" (like Slender: The Arrival) than games which receive updates later and less often than their Steam counterparts. In the latter cases it might even be up to GOG, they decide to skip some updates because they know a bigger update is coming just around the corner.