The current TOS doesn't says, explicitly "The uploader grants all Orbiter users the right to use the bundle" - or something like that.
So the Usage Rights are implicit, and I was informed that implicit rights granting is shady.
However, there're something that I realized just now: even if we agree that we must add such OHM_TOS.txt file on the bundle, we also agree that it's not acceptable messing with the already uploaded files.
So my proposal's main purpose ("no 'damage' to OHM) is not reachable anymore, as a lot of add-ons are pretty old and it's unfeasible that most of them would be updated by the copyright owners. :facepalm:
So, using my own criteria, doing anything is so "harmful" as doing nothing. There's no way to run, my criteria is unfeasible.
So, I drop it.
I will compromise with any solution that doesn't add "damages" to OHM's eco system. What includes doing nothing. :dry: