Doesn't tptacek routinely defend pro-authoritarian and far-right views on these forums? His condemning Snowden's actions seems perfectly in line with the things he usually says.
I wouldn't consider him a good example of what HN users think.
As for Andreesen, he may be more representative of Silicon Valley, but he is also known for having endorsed Republican presidential candidates multiple times (Romney, Fiorina). See Wikipedia: https://en.wikipedia.org/wiki/Marc_Andreessen#Personal_life
She has certainly already been able to divert to herself a good chunk of her investors' money. And it's unlikely that she will ever have to face personal consequences for her decisions.
Maybe she will run for president in a few years. She certainly has what it takes for a successful political career.