Hey marketing manager managing these posts...I know you told your boss about all the Stargate replies and she likely brushed it off.
Well, you'll become a hero to Stargate if you just keep telling her that we aren't going anywhere (cite some examples like me) and you can no longer measure true engagement because we are skewing all the statistics.
Then tell her that any sort of attribution tied to X is basically broken until this is resolved, meaning you can't accurately target dollars to things beyond Stargate.
Then follow this up by saying you've never seen this level of engagement from a fanbase and that if we had a new show they could catapult its reach enormously without spending a single dollar of paid ad (major major $$$ savings, by the way, I'd assume 6 figures at least).
Then cite the paid ad spend you have for all of these crappy shows you keep having to post and compare how it is nothing compared to the organic outreach of Stargate fans and is actually doing nothing because the comments distract people.
Finally, if she doesn't listen, keep doing this exercise and when you are in a future meeting with her boss, or people at her seniority level who care about this data, drop some sort of stat about the crazy levels of engagement/impact to the ad spend budget from these Stargate fans and stop talking.
If anyone picks up on that little mention, be prepared to talk about the crazy stats and how much money you'll save on ad spend via organic reach if there was a Stargate franchise.
CARTER: Jack............JACK!
ME: Sorry...that ancient head thingy must have downloaded some ancient knowledge on marketing...stuff