This reads to me like you don't like some of the posters and would like to corral them out of sight. The issue is one of defining what qualifies as a political/drama post; as if there is a controversy involving or adjacent to gaming, I would think it would be fair to discuss it alongside other gaming topics.
What I'd really like to know is how you'd handle a couple cases
@Desire Lines
- A new game in a series is released, but most of the characters are hidden behind paywalls on top of a $70 game price; people are angry and discuss it in the series' thread
- A game is released and retcons one of the characters into being a lesbian; people are angry and discuss how a social media campaign on Reeee/twitter led to this
- A skin is released for a dark skinned character that lightens their skin; twitter is enraged and people laugh about it in the series' thread
All of these could be called drama if you wished, and all are political in some measure, but I get the sense that only 2. and 3. are being objected to. However I don't think a distinction between the three can be naturally constructed beyond their relation to idpol. I can see why you might find it disruptive, but I think it ultimately comes down to personal taste.
However, I agree with the suggestion of a drama megathread or board, though I don't think there's enough remaining interest in gamergate for the revival of it's board. I also wouldn't be in objection to having someone there to merge the minor and ephemeral "Did you see what that guy said on twitter???" threads into a drama megathread.
It would be better to merge ephemeral drama threads with the main drama thread once they've run their course, rather than have a mod be the sole decider of whether the discussion is worth a thread.