Yeah there's nothing wrong with making threads or advocating for what you want. You might get people that disagree with you, or who don't disagree with you but don't think it's feasible/likely to be implemented, but there's nothing wrong in asking for it. Just be aware there's likely to be people arguing against it, but that doesn't mean you can't make your case. The only thing I'd keep an eye on is try to avoid spamming the forum with multiple active threads on the same subject, but short of that, post to your heart's content.

I've heard the devs find it more useful to have one big megathread than multiple separate threads but that's just what people here say, I don't know what the devs themselves have said on the subject.