My experience disagrees. There were 3 albums I used to yearn for and they have all of them. Nothing I've ever tried listening to is missing or has gone missing. I listen probably about 8 hours a day on average and have never hit a limit. I also didn't have to register a Facebook account.

It sounds like you're not a paying customer and go to great efforts to remain a non-paying customer. I'm not sure why they should be prioritizing your use case.