More like Reddit. The contributors will just leave and you'll be left with a corpse of content to rip going forward. Tofu is different because of the broad contributor base around the Terraform ecosystem. Lots of people's jobs (or companies even, Spacelift for example) depend on Tofu not only existing, but improving into the future.
If you have a benevolent dictator with deep pockets, throttling usage and retrieval is less of a concern. The Internet Archive comes to mind, as does Wikipedia. Reddit's outcome happened because they were a discussion board utility masquerading as a 10-100x VC funded business, and their actions drove away the concentration of mods and contributors who were putting in all the free work (broadly speaking).