Earlier quoted context omitted.
It's their founders personal account that blocks everyone and I am reasonable sure it's a personality trait.
Andreesen blocked me, a little nobody, when I had a different opinion than him when he was supporting an argument for an investment in some kind of app targeted at young people in Southeast Asia. The app was supposed to aid them in their entrepreneurial endeavors (or somethign like that). His comment was something along the lines that the app would be highly utilized because just about every young person in Southeast…
Especially ironic considering that it was geared towards India's decision to ban Facebook's "free internet". A decision, which looks in hindsight, extremely smart.
[1] https://money.cnn.com/2016/02/10/technology/marc-andreessen-...
edit : clarify