Another site that comes to mind is the Financial Times, which uses UUIDs for article urls, with no other indication of content.
https://www.ft.com/content/13be9132-8149-11e9-b592-5fe435b57...
https://www.ft.com/content/13be9132-8149-11e9-b592-5fe435b57...
Not if done right, like e.g. stack overflow, see https://stackoverflow.com/questions/517355/string-formatting...
The human readable text is actually meaningless, and anything after the id will redirect there, e.g. https://stackoverflow.com/questions/517355/this-could-be-any...
meta.stackexchange.com/questions/148454/why-does-stack-overflow-use-title-slugs/