I don't think it's "rehashing the past" to point out that a person's new incredible claim is suspect, given a history of making incredible claims in the past without actually delivering.
Yes, it is. You literally used the words "in the past." If you don't like his new browser engine, fine, but repeating this two minutes hate every time one of his projects gets posted on HN is self defeating and toxic.
But it just seems like Medvednikov keeps repeating the same patterns over and over. He's making dubious claims about software without sharing how he arrived at those claims, and he's calling something open-source when he hasn't released the source.
Why should people who know about this pattern stay silent and allow others to be misled by the same patterns?
That's your opinion. I don't agree with that characterization of him or his projects at all. It's a convenient way to give yourself some cover for attacking a creator you don't like.
never happened
Vox is not released yet, and the website literally says "upcoming".
But the language unfortunately remains unstable to this day. There are memory leaks with very basic things (e.g. readline, reading from maps) that are still being fixed as recently as half a year ago: https://github.com/vlang/v/issues/18009, https://github.com/vlang/v/issues/19454
A fixed memory leak in os.input() in a 0.4 language, really?