Is this a waste of time?

[CharlesEatsFood]

Is there any history of devs acting on any of these suggestions or even responding?

Or is this just the equivalent of a busy box to make us feel like someone is interested in our opinion?

I don't know about the past, but they sure as hell don't fix major issues anymore. Considering they keep releasing JP items that not all players can see, I'm pretty sure the game developers have been replaced by monkeys.