This is an OK location for suggestions, as Ashley has said previously he does look at them, even if he doesn't comment in them.
Personally, I don't see the need for any of your suggestions, as I have never come across the need for them. But that's just me.
Suggestions would need to benefit the majority of users, but if it's just affecting a few, then it may not be deemed a priority.
Maybe the new C3 editor will incorporate some of your suggestions, but we won't know for quite a while.