Weasel words, basically. All too common in journalism. It's also common on Wikipedia but Wikipedia acknowledges it: https://en.wikipedia.org/wiki/Weasel_word

that quotes attributed to "investors," according to Masad. but some of the most heinous stuff people said to him is public: https://x.com/rabois/status/1943804360863232513 "your friends should have not raped murdered and killed kids."

It's Twitter - that's how a lot of people (or bots) say hi.