Gosh darn it I only just onboarded to Omnivore a few months ago Now I guess I need to find a new place to store bookmarks

One example I can think of is Widevine DRM, which is owned by Google and is closed source: https://en.wikipedia.org/wiki/Widevine

Google currently allows Mozilla (and others) to distribute this within Firefox, allowing Netflix, Disney+, and various other video streaming services to work within Firefox without any technical work performed by the user

I don’t believe Google would ever willingly take this away from Mozilla, but it’s entirely possible that the movie and music industries pressure Google to reduce access to Widevine (the same way they pressured Netflix into adopting DRM)

For disappearing messages to work, your conversation partner has to promise they won’t take photos of their screen, and they have to promise to use an app that actually implements the feature instead of just pretending to, and the app developers have to promise to have implemented the code to delete a message when the service says it should

Is there actually a cryptographically-sound and physically-complete method for ensuring that a message is only legible for a temporary duration once it leaves your own device and is delivered to someone elses?

Hmmm, is CloudFlare known for being a bad actor in terms of privacy?

Setting that aside, no matter what you pick, you’ll be exposing your IP address, from which your ISP and/or general location may be derived

If you don’t trust CloudFlare with that information then you basically cannot trust anyone else, so maybe you’d need to run your own service and ping that instead now that you’re in a situation where you can only trust yourself 🤷

The other issue that comes to mind is that you’re only testing reachability to one address, which means you could get a false negative where that address stops working but the rest of the internet is actually fine