Are you even reading the comment you're replying to? It doesn't seem like it.
Gmail doesnt "push notifications" for anything besides receiving email. Recieving a spam messsage, i.e an interaction with a federated service that anyone can run, is not at all the same as a company's app, that they full control, pushing a notification, that they fully control, from content on their site, that they full control. Comparing that to Gmail, which is in this case would be a neutral party to the content of the push notification, is not the same.
I very clearly pointed out that i expect the notification came from a computer fucking up. You should re-read the comment to make sure you understand it. I also made it very clear that if you have nazi shit on your platform, your computers may fuck up and push that that Nazi shit out to people. The best way to combat that is not having Nazi shit.
Either way, it's good to see you accepting that "Substack welcomes Nazis" is accurate now. Maybe it wasn't in 2023, the last time they made headlines for paying Nazis to post on their platform, but it is now. I expect with the very recent 100 million cash influx from far right Trump supporters, that isn't going to change.
Maybe stop carrying so much water for a site that is clearly absolutely cool with Nazis?
Your gmail notification point doesn't track, but its the most minimal point so i'll drop it.
I dont think Substack is specially just a Nazi platform. I think they are Capitalists that will use any kind of speech to make money. While bootstrapping, they found a niche in leftist independent journalism. Now, they view far right hate as profitable, both directly with Nazi commentors and being paid large sums to enshittify the platform from far right figures.
They dont care about racism or hate because they are rich and it makes them money. That does make them bad people, no matter how many leftists they also profit from.
I absolutely expect they will follow a Twitter style path from here on out, with or without Musk at the helm. Once you let the Nazi's into the bar, they take over by driving everyone else out. Substack has said "come on in!" so they will. Some leftist will remain for a while, but eventually the Nazis will be all that's left.
I expect you make some kind of living off Substack? Maybe look into Ghost as an option. They take way, way less money even when fully hosted.