I'm one of the few bug-reporters on Nostr, but I've got to disagree with you on the first point.

These people aren't fast because they're agile. They're fast because everything they ship is alpha and they skip refactoring and maintenance.

There's no way to test quality into something poorly-conceived and sloppily-executed. I've nearly given up reporting anything because either they don't fix it (because HOW?) or their fix breaks something else because they don't have tests to protect against regression.

Agile projects tend to be a bit slower, at the very beginning, because they focus on DevOps and architecture. It's the product iterations that are fast. A good agile team can release every week with confidence, or even continuously, if they have the chain tight enough.

These people have no chain. Their website goes down or their app becomes unusable and they don't even notice.