I don't think the forums are a great venue for providing useful feedback to the devs, for the reasons you list. Even the stickied threads aren't great - they seem to be the result of a loud contingent of forums users, but personally I agree with very little of what's there. The majority of active posters (at least from what I've seen) seem to care more about making a 5E game, or a true BG3 or whatever, and don't think about games from the psychological viewpoint described in the OP.
There's a feedback form on the launcher, and I imagine that would be a more productive way to get feedback to the devs.
