Modpack Policy

Curse modpacks: yes, since it's already hosted there.

Distribution with ATLauncher, FTBLauncher, Technic Launcher: yes. (That's all the modpack hosters I know of).

Rehosting the mod on chinese/russian sides: no, but they don't care and will do it anyway.

Private packs: Doesn't matter what I say because its private anyway.

If you use the mod in a pack outside of curse, It would be nice to make a post on curseforge or the minecraft forum, but that's not a requirement.