I have, however, seen it used as such several times (another one of my friends was emailed a link, presumably by someone in the community, to an anonmeme dogpiling her).

Just to clarify: I can virtually guarantee that was no one who considers themselves a member of the community. We've had an unknown angry linker lurking the comm for a few months and trying to stir shit by linking people to threads about them, and we find it deeply infuriating.