Contracts stipulate that material that has been paid for remains available even after the subscription is cancelled, that's usual for publishers. There's also agreements that material is transferred to archive sites if a publisher goes out of business and finds no buyer.
I wouldn't know about ToU violations, universities routinely get banned from arXiv for weeks because CS departments hand out assignments to write a webcrawler - no clue what kind of grovelling is requited there, but it must be well ritualized now.
I wouldn't know about ToU violations, universities routinely get banned from arXiv for weeks because CS departments hand out assignments to write a webcrawler - no clue what kind of grovelling is requited there, but it must be well ritualized now.