I can’t speak for everyone, but I know I haven’t and never would merge a complaint into The Ridiculous Complaints thread as it’s meant to be satire, not real complaints.
I have seen people put real complaints in there, though, which are typically moved to more appropriate spots.
The other “ridiculous” threads describe something as ridiculous, not the complaint itself, e.g. Summons are ridiculous - Summons MASTER or Class quests ridiculous — and those are actual complaint threads, with titles chosen by the OPs.