I would assume someone (a moderator or Community Representative) is responsible for this. If there isn't one, there should be one appointed. But seeing as how DoS only improved from player feedback over time, I would imagine the same would happen with BG3.

I'd say ideas are more likely to get traction here versus Reddit or even less, Steam (ugh) but who knows.

There would be no point in it otherwise.

Keep in mind we're only like 1 week out of EA. I'm sure there are a ton of metrics/data to read through and disseminate. There's PLENTY of time to get the major issues ironed out. I'd say this game is at least 1.5 years out, if not a bit more.