Magolor

Just it being against the rules should be enough of a reason not to. And if you lose money to a name seller it just encourages them to continue dealing with names.

For me it's penguin hunting. I never do it unless I'm working on some skill goal and happen to remember those penguins exist. Besides that, I do Tears of Guthix whenever I remember, which isnt' often. And those two are the weekly tasks I do the most. Other things like Skeletal Horror or Bork I completed once and never really planned to return.