Personally, I think those questions need to be treated more like our homebrew-review questions. Just asking "Does this break anything" is a zero effort post. They are wanting to construct homebrew/house-rule, but haven't done any effort to see if there are issues - and no work has been shown.
We should hold these to the same standard and ask folks to come up with their homebrew/house-rule, evaluate it, show us the work and ask for feedback on areas they recognize may be problematic.
Just asking "is this broken" isn't really enough. I mean, I guess it is with just a downvote, but then this becomes a 'homebrew it for me' type exercise. I think it's better to close it and how them what needs to be done.