I suspect most of the questions from each of these should be merged to email-attachments, but there's a lot of badly tagged stuff on both that needs manual cleanup. Also, it keeps piling up: as of this writing, the latest question tagged with attachment is barely half an hour old.
I'd welcome any suggestions on what to do with these tags. Blacklist, clean up, and merge?
Edit: Looks like attachment and attachments have been merged together, so now we only have a single problematic tag with 959 questions. I guess that's a step in the right direction, so thanks, whoever did it.