doubleclick is a common adware that's placed on your computer via any number of sites. I doubt that you contracted it here. However, the coding on the forum may interact with doubleclick in a funny way unlike the other sites you visit.
As for giving the mod(s) a hard time about not removing a user: I've already said this, you simply send a PM to the mod(s) and/or Curt and leave it at that. It
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