Requested feature overview description.
When saving an image in a Pool, there's an option to prepend a number (integer):

• 1_[md5].[extension]

[..]

etc.

Why would it be useful?
Makes it easier to save comics etc in the right order

-
md5 hashes don't correspond to the order of the posts in a comic

What part(s) of the site page(s) are affected?

• Pools
• Filenaming algorithm

There could also be the option to specify the incremental string as well:

but IDK it it'd be worth the effort

Alternatively the site could automatically tag something like page_1 for example.