A harasser is someone who targets someone systemically or continually even when their behavior is unwanted.
Further documentation on the subject is available under Portal:Harasser where you can find more kinds of harassment as well as more trolls that fit the description compared to just a category.
A troll is eligible for this category as long as they have harassed at least one person and/or is already categorized in a category about a type of harassment such as Witch hunter, Blackmailer or Smear merchant for example.
Pages in category "Harasser"
The following 59 pages are in this category, out of 59 total.