Wow, those childish ad hominem tweets look really bad coming from a company account. I know nothing about PrivCo - is this a one-person shop?

No. According to Glassdoor, it says 16-50 employees - http://www.glassdoor.com/Overview/Working-at-PrivCo-EI_IE659...

LinkedIn has them at 50 employees. Safe to say it's definitely not a one man shop.

Inspired by this thread where Fred Wilson called Privco's data garbage, their response was a bit of a case study in how not to respond to criticism.

https://news.ycombinator.com/item?id=5746763