The bulk update request #10159 is pending approval.

create alias delta (53) -> delta_(disambiguation) (0)
create alias delta_(oc) (2) -> delta_(disambiguation) (0)
create alias delta_(character) (14) -> delta_(disambiguation) (0)
change category delta_(disambiguation) (0) -> invalid

Reason: General term, and there are a bunch of different characters in the tag.

Edit: added delta_(oc) and delta_(character), and am currently cleaning what of them I can find better names or owner names to move them to.