| muckraker(noun, opponent, enemy, attacker, critic) |
| mud-slinger(noun, opponent, enemy, attacker, critic) |
| nagger(noun, opponent, enemy, attacker, critic) |
| nit-picker(noun, opponent, enemy, attacker, critic) |
| panner(noun, opponent, enemy, attacker, critic) |
| quibbler(noun, opponent, enemy, attacker, critic) |
| reviler(noun, opponent, enemy, attacker, critic) |
| scolder(noun, opponent, enemy, attacker, critic) |
| slanderer(noun, opponent, enemy, attacker, critic) |
| vilifier(noun, opponent, enemy, attacker, critic) |
| worrier(noun, opponent, enemy, attacker, critic) |
| zapper(noun, opponent, enemy, attacker, critic) |
| beholder |
| bird-watcher |
| busybody(noun, gossip, nuisance, ferret, nosy) |
| butt-in(noun, gossip, nuisance, snoop, ferret) |
| buttinsky |
| bystander |
| critic(noun, opponent, enemy, attacker, censor) |
| criticizer(noun, opponent, enemy, attacker, critic) |