It may be because I'm more plugged into the broader dev community, but Blow is generally regarded as a huge piece of shit in the dev community. There's a semi-influential dev writer/blogger named Bob Martin who got himself disinvited from speaking invitations to several conferences in 2020 due to his uncontrollable need to post an unending stream of barely-veiled white supremacist takes on Twitter.
Blow freaked the fuck out about this, made it into a "Free Speech" issue, preemptively refused to speak at any conference with a Code of Conduct that might discourage racism, and in general just went full alt-Right "cancel culture is out to get the white man" style apeshit.
Jesus Christ, I hadn't heard about that one. I used to tune into his dev streams from time to time because his compiler work is interesting (when he's not on whatever hobby horse soapbox he has for the day). Some of the stuff he would say would just "blow" my mind, and I had to stop watching them entirely. It didn't help that his chat basically morphed into a swarm of mini-Jonathan Blow's that just echo his talking points all the time.