You are totally wrong, I didn't it, especial called somebody "old".
Perhaps you think like this because I wrote next:
Key developers will be changed by people with another experience and habits (and maybe younger).
In this context under "younger" I mean different experience are getting now a new generation of developers. They don't know "news", "mailists", "bbc", "fidonet", "IRC", "perl", "C" and true terminals, but they know "github", "python", "C++", "Java", "gitter", "discord", "JS".
It's all this not a bad it's just obvious difference. Even more, I think "old" experience better, but all this experience dictates development styles and tools.
There are many projects I've spent weeks developing code for a feature that I thought was the business, only to have the maintainer and/or users say "no thanks": that's the spirit of open source.
I agree, I know it but also I still think change build process really need for Postgres community for growing. At now, I can't see "no thanks".
I notice that you ignored the two other paragraphs of my email. I appreciate that you're finding this frustrating but selectively picking like that rarely helps a discussion progress beyond point-scoring.
Because, I agree with this obvious things and not understand how it tied with our discussion. Looks like you understood my words in wrong key. Sorry for that.