but who was phone?
They also don't increment by one upon a new post. I suspect they're derived from some time stamp. Unix time is currently 16... so that's certainly not it. GPS time is currently at 130... which is close but not quite.
Looks like the code responsible is in resources/ids.go and resources/snowflakes/generator.go. It does indeed derive from a timestamp
Why are the post numbers so large? I really doubt this board has seen as much activity as the post numbers suggest.