Definitely, a committee is really necessary. What I like about having an Independent entity to fight abuse is that it will operate and act as a [Nuclear Deterrent Mechanism].

Deterrence theory holds that nuclear weapons are intended to deter other states from attacking with their nuclear weapons, through the promise of retaliation and possibly mutually assured destruction (MAD).

People with power will be more inclined to move on and avoid abusing their power.

What if the entity starts abusing its power? It will be pointless, the account Will have a lot of limitations, and the community will have the final decision on whether the account should be terminated or not.