Good bump-- This won’t come as a surprise to anyone that’s been watching recent discussion, but I’m actually opposed to this, even after a little light reading on the previous posts in this thread. The most important role that RGs serve, to me, is to aid in discoverability.
I can definitely see / relate to / understand the desire to have different RGs for re-recordings, but in my mind… how to put it…
…Works are to Recordings
as Release Groups are to Releases
They represent, on a conceptual level, the same entity, but different instantiations of that entity. The most mainstream use case for RGs is different editions and releases in different countries (The Xenoblade Chronicles 2 soundtrack comes to mind), but I believe it’s more helpful than hurtful to use more generous grouping than just that, and group, say, the original and re-recorded versions of a release together, so that information discovery is easier for people actually using the MB site, and the Releases can “cross-pollinate” (so to speak) users’ discovery of the other Release.
Edit: I realize that I’ve just hit on the heart of the issue, which is, “When does one consider the entity, on a conceptual level, to be distinct?” And this is always going to be controversial. I don’t have any good answers at the moment, but here’s food for thought:
Could the same rules that are used to determine whether one Work should be distinct from another Work also be applied to Release Groups?
Edit 2: And also: Regarding our stance about how artists feel about their newer works being grouped with their older works, or whether they’re able to make clean breaks from the past and whatnot… I’d encourage folks to go and read the Data Removal Policy, and just take a moment to soak in the ethos of what’s written there. That’s kinda where I’m coming from re: that little facet of the discussion, personally.