In your mind this means that Yoel maybe doesn't deserve to be threatened, but still he should have expected this?
So how about for yourself? You posted a link to a link to an innocuous article titled "Student-teacher sex: When is it OK?" What were you thinking?
Would you want me to judge your character based on the headlines of news stories you submit to HN?
Musk followed up the initial tweet (from a third party) by tweeting a page from Roth's dissertation, in which he wrote that services like Grindr (a gay dating app) should proactively develop online safety policies because it was very predictable that gay teens who use the internet might attempt to use the app. 'Underage people might use your adult dating app, so you should plan ahead for that' is not promoting the idea of underage people using the app any more than 'buy a fire extinguisher for your home' is advocating for arson.