Pika

I think that, eventually, we'll have to resort to networks of trust. Meeting each other offline and confirming this person does indeed exist is one way of severely reducing the influx of bots.

The problem is, it takes a much bigger effort and makes building global networks and new registrations much, much harder. It'll take a while for the same person to be confirmed in the US and then confirm someone in, say, Philippines.

Damn, fuel is finite

Step 1. Get a lot of money

Step 2. Ignore the laws and get myself a super comfy RTG-powered hidden bunker with a Faraday cage

Step 3. Put my servers in there, take drives full of everything from the outside

Step 4. Live comfortably ever after

Ubuntu has large corporate interest and is managed by a private company earning dozens of millions of dollars annually. There is a financial interest to be made here.