I mean online providers like jmp.chat, my sudo, and virtualsim will hook you up for a couple of bucks. So sure, if you are seriously cash constrained or crypto is unobtainable for you, then not so easy.

The strong bias seems to be toward Torrents instead of USENET? Why? Cost of providers with decent retention?

I always assume that Usenet (with anonymous payment and a separate VPN) is a safer option than torrenting since I'm not the one publishing / sharing content. A copyright holder would have to go after that Usenet host (with a general court order), extract logs from them (if they exist), figure out who was actually infringing on copyright, then go after the VPN provider, to deanonymize me.

Burner numbers are pretty easy to come by...