Another question is whether a mod should maintain only a single entry or one for every single patch or somewhere in between.

This is what I'd propose to start off with:

A new thread for each download?

We would recommend that modders start a new thread for each major release, but for patches to edit their original entry (so for example, a mod at v1 should have a new thread for a v2 release, but a v1.1 patch should be included in the v1 entry). Please be aware that you will have to edit the thread and the database entry separately.

Also, if any versions of a mod are no longer available for download then please inform the staff who can close the relevant thread and remove the entry.