hoppelhase

> They probably took it down because as the original app it violated the App Store’s guidelines on data collection.

Or maybe Apple took it down because - as you said - it violated the store guidelines. Or Apple just encouraged them to do it by themselves (for a better PR). So effectively, they were forced.

Any European people affected? How does this play with the GDPR? Are the user's over 16? Anyone tried to file a GDPR data request?

As this is valid, but only useful as documentation:

    void foo(const int n, const char data[n])

Is this also valid?

    void foo(const int n, const char data[static n])

By "this" I mean encoding information in the address in general, not this signage-thing. See my other reply in this thread.

If this becomes more common, the IPv6 address space will be exhausted pretty quickly. There already was a proposal on encoding phone numbers in IPv6 addresses.

Well, no.

Sessions, IP addresses and User Angents associated with oneself.

The stuff you can't scrape is the interesting stuff.

Maybe they want that people realize that the project in question depends on donations. If they just give them a bunch of money, many people won't notice.

Well, yes. I was solely looking from a user's perspective.

What about [email protected] and the remaining RFC system addresses?

I recommend the Firefox addon "Bloody Vikings!". You can just right-click on a form field and select from a bunch of trashmail providers. The inbox gets opened and the address is inserted automatically.