Wikipedia:WikiPotoo

A WikiPotoo is a highly nocturnal user who reads up on its interests and generally likes to conceal its presence, thus avoiding attention. They only ever break this camouflage when editing and researching articles in their interests.

Behaviour
Generally free-spirited and highly nocturnal, the WikiPotoo uses its cryptic presence to allow them to easily evade conflict when bothered with a strict enforcement of rules. They tend only to edit articles that interest them, but will only do so after having amassed enough knowledge about the topic as this means that they'll have to break their highly valued camouflage.

Diet and feeding
WikiPotoos generally have little trouble consuming minnows. Trouts and whales however may prove as an inadequate food source.

Defence
Mobbing behavior has also been observed among WikiPotoos. Mobbing is a widespread behavior in which an individual or a group of users deliberately confronts a potential predator. Mobbing users crowd around the predator, making edits using an approach and retreat strategy. They also emit loud repeated calls, which generally attract additional users to join the mobbing.

Identification
A WikiPotoo can be recognized using the userbox: