In this meta discussion which outlined the accepted policy for dealing with image only id requests, Merchandise and Cosplay questions were considered an acceptable subset which we would want to keep
But I have to admit those are not a good questions.
Are we going to put another effort to make a guidelines to quality control (QC) those question like we used to do (I know you guys hate it but I think I'd ask it just to be sure). Or we just blindly accept/reject those questions?
Additionally, quoting this meta question
Inform new users about the merchandise, cosplay, and itasha tags as needed. There will be a separate meta (to be updated) on guidelines of how to use these tags.
What should be used for the tag excerpt? As for now, nothing is mentioned in those tag excerpt on this matter.