So let me share my 2 cent on this, because it's an interesting suggestion, but not one I fully agree with myself.
My current thought is anyone of any rank should be able to report someone on the for breaking the rules.
I think the decision on punishment and such should ultimately be left to the forum staff, as the in-game administrators handle the reports in game in the same way.
I also agree that commenting on reports need to be changed, and it's something I'm keen to roll out everywhere, but would like to trial here.
I'd like to get rid of "Vouch" and "Object" and "Neutral" as valid responses to the forum reports, I think the comments should be providing comments to help support the decision making progress, so if there is evidence to support the case, or to support the person being accused, or if there are personal experiences that are relevant, that should be in there. But it should ultimately be there for the exclusive purpose of helping form an actual decision.
I'm keen that this is the approach we take more generally anyway, because I dislike points based voting and all that rubbish, because you end up with far more clicky groups of people running things, and ultimately the decision shouldn't be exclusively a vote call, it should be based off of the facts provided and an informed decision by the person empowered to make that decision.
I'm open to critique, on this thought, but yeah, I agree with pretty much everything else on this thread, requesting specific sanctions is ultimately just backseat forum administrating which isn't something we really want.