This suggestion is mostly geared towards Minecraft due to there being a lot of forks of mods for older versions of the game, but this tag could be applied across the whole website since any mod from any game can theoretically be forked (provided they have the permission to do so, of course).


Query: "Why is it useful?"
Argument: This would help improve the discoverability of "Continued" versions of mods for older versions of the game. This tag would also make it easier to tell the original mod apart from forks of that mod, since the original wouldn't have the [Fork] tag. Furthermore, not all mods use the same terms to disclose them being a fork/continuation of their parent mod. For example: Some mods will use the term "Extended" in their title to signify they are a continued fork of another mod, while some will use terms like "Retro" or "Updated" to indicate they are backports of other mods. As you can guess, this lack of consistency can make it difficult to find the kind of mods you're looking for, and having to remember each individual term every time you want to include the right mods gets pretty exhausting (and time-consuming) to deal with.


Query: "Who benefits from it?"
The following mods are most likely to benefit from using this new (theoretical) tag:

Lemonskin (Continued fork of Appleskin for 1.12.2)
https://www.curseforge.com/minecraft/mc-mods/lemonskin

AE2 Unofficial Extended Life (Continued fork of Applied Energistics 2 for 1.12.2)
https://www.curseforge.com/minecraft/mc-mods/ae2-extended-life

Nutrition Unofficial Extended Life (Continued fork of Nutrition for 1.12.2)
https://www.curseforge.com/minecraft/mc-mods/nutrition-unofficial-extended-life

Mekanism Community Edition (I think you get the idea.)
https://www.curseforge.com/minecraft/mc-mods/mekanism-ce

Query: "How should it work?"
Argument: Simply, of course. This tag would work the same as any other tag on the website, with mod authors being able to add it at any time during or after the creation of the mod's homepage. I don't know the process mod authors go through when publishing a project, but I believe it important to include a bit of text somewhere that says something like "Hey! If the project you're uploading is a modified version of another project, you should add the [Fork] tag to make it easier to find!" This text would mainly act as a reminder for those who forgot/never knew it existed while also encouraging people to actually USE the tag instead of just ignoring it.