... because among your edits you deleted one trope in its entirety and about two-thirds of another, with no explanation for either. As laid out in a bright yellow box that appears on the edit page when you edit a YMMV page, this is counter to wiki rules. The only grounds for deleting content from a YMMV page is if it itself violates wiki rules, and the excised material didn't. This is a formal warning as defined in All The Tropes:How We Do Bans Around Here: Deleting content from a YMMV page is a bannable offense, and you are now on notice: delete content from a YMMV page again, and you will be subject to a temporary block.
-- Looney Toons, admin