It starts off with normal support, goes towards outlandish support, then concerning support, then ethically-questionable “support”, and after every one, Scott's written “I am humbled by [pronoun] support”.
Imagine: You're clicking around the web, and you find an article posted by a respected food critic and French chef titled "10 food items I detest at McDonalds". You click through, and nod your head at number 6: "Their milkshakes - so called - appear to have no relationship to milk, dairy products, or edibility, and all the flavours taste vaguely of chalk and despair." You laugh in agreement at number 8: "The fries are mediocre when fresh, but quickly congeal under the heat lamps into a starchy, greasy, undigestible brick." But number 7 gives you pause: "The chicken nuggets. The rich flavours, the unique shapes, the delicate breading. What tastier treat could be imagined?"
You quickly jump onto social media and post an outraged rant - how could this man like chicken nuggets? You suggest that perhaps he's not as good a critic or chef as imagined, and you float the idea of starting a petition asking for him to be fired. A man who loves chicken nuggets can hardly be trusted in, near, or writing about a kitchen after all, right?
But of course, this was sarcasm. It's a list of foods he does not like, and tucked into the middle of this list of foods he does not like is a sarcastic description of chicken nuggets, which he also does not like.
Similarly, here, Scott is in the middle of a list of people he disagrees with who contacted him to offer unsolicited, unhelpful advice. One of them is Srinivasan, but his gently mocking description of Srinivasan's advice is no more an endorsement of Srinivasan's views than his description of the Gamergater's offer is an edorsement of Gamergate or their PR efforts.
What the person you were responding to was obviously doing was not saying that "threats against journalists is top notch", but that Scott's writing criticising Srinivasan's anti-journalist crusade was top notch. Which is, I think, a fair assessment; it was a well written criticism of Srinivasan.
It's tacit disapproval, but not quite strong enough that people will go off on a tangent about it in the comments (though they still do).
This kind of interpretation is why we can't have nice things. Everything you read these days has to beat you over the head with their point, or caveat everything in a sad and painful way. It's the death of joy and play in writing and reading. I'm glad people like Scott can write so boldly, even fully knowing, as I'm sure he does, that the joy and play will be read in the harshest light. And I mourn for all the joy and play I'll never read because people are rightfully afraid of being miscast and mischaracterized.
Give me an example, and I can probably find somewhere he's explicitly, unabashedly condemned it, and you probably can't find somewhere he's condoned it. Most of the places I've found myself in disagreement¹ with Scott Alexander, it's turned out that I was the one who hadn't thought through the moral implications of the thing I condoned.
¹: Excluding philosophical disagreement along the lines of “what should we care about?” – what would be religious disagreement were he religious, which most people in my culture don't consider a sign of evil.
Can we stop being so laborious?
Then you'll understand what they actually meant.
For that matter why is Scott not considered a journalist?
Many of his pieces are deeply researched and analytical of current affairs and are certainly comparable to magazine journalism.
Additionally, journalists are just journalists. Sometimes, knowingly or unknowingly, the things they publish work in favour of fascists and fascism.
Top notch.