censurer

Reflect′iveness; Reflect′or, one who, or that which, reflects: a mirror or polished reflecting surface: a censurer.

Peevish, querulous, a panegyrist of former times when he was a boy, a chastiser and censurer of his juniors.

For other faults of poesy, I crave no pardon, in that I scorn all penance the bitterest censurer can impose upon me.

He also took upon himself the office of perpetual censurer of my discourses.

It is easy to find a censurer of the sins of the land, but hard to find a true mourner for the sins of the land.