Isn't it open source? Why is it being in proprietary software bad?

What's wrong with a permissive licence?

Preaching to the choir.

Could you use any streaming service that's not limited to police activity?

It'll happen in the Fediverse too.

Why don't they ease your mind?

SMASHES, really?

Is it any worse than what would happen to birds with conventional turbofans?

And how much more easily they could survive it. Conventional turbofans get the birds stuck inside and fail. These could effectively bounce them off.

How many more moving parts than a conventional turbofan? Maybe four gears and a rotor?

There would probably be less damage than from a conventional turbofan hitting it - the blades would shatter rather than the cowling digging in.

Yes, the UK uses yards as an intermediate unit between feet and miles, and it's displayed on signs.