> A Meta engineer involved in the torrenting wrote a script to prevent seeding, but apparently not leeching.

Wrong. Michael Clark testified under oath that they tried to minimize seeding and not that they prevented it entirely. His words were: "Bashlykov modified the config setting so that the smallest amount of seeding possible could occur" (https://storage.courtlistener.com/recap/gov.uscourts.cand.41...)

They could have used or written a client that was incapable of seeding but they didn't.

> no if you had leeched its is very unlikely that you would face time in prison.

Not the one who claimed that, but if I think it's fair to say that doing what they did, at that scale, could easily result in me (and most people) being bankrupted by fines and/or legal expenses.

No they could not have written a client incapable of seeding since private trackers ban such clients.

Do you not think an engineer who went to such efforts to disable seeding wouldn’t go the full extent? Why not?