These are players that do nothing useful for RuneScape and make the game annoying to play, but are not necessarily on the same level as griefers.
“Some of the most annoying things in Runescape are players you don't understand the game, but act...F2P "Houses"
“An Abyssal player killer is someone who disrupts players RuneCrafting in the Abyss. Sometimes...Abyssal Pker
“A Stalker is a person who follows and annoys you around all of RuneScape, sometimes wearing good...Stalker
“A scammer is a person who scams other players out of their posessions and are more common in...Scammer
“A Beggar is a player usually a lower level that begs for free items. Beggars usually never...Beggar
“A rock thief is a player that deliberately starts mining a rock someone else is mining in an...Rock thief
“If or when a player buries a bone and a shade or zombie pops up (or any other random event...Door Opener