Anyway, the note is copied pretty much verbatim from the Rational Wiki page on him: https://rationalwiki.org/wiki/Scott_Alexander
Which links here: https://web.archive.org/web/20200623184053/https://twitter.c...
It links to the bottom of the thread in question. The gist of it is that, Scott Alexander communicated and had an open dialogue with the reporter, he knew that his name was going to be published (At the least, he didn't demand anonymity). The reporter initially had a positive take on SSC. The person in the linked tweet spoke to the reporter and introduced them to a different perspective, and put them in contact with other people with a slightly negative perspective of the blog. As soon as the reported started contacting those people, however, Scott suddenly had a problem with his name being published, and the blog was deleted.