Well, if it's not a YC problem, it should very well become one.
TBH most of this is basic competence. YC can't ensure that all of the companies are competent in all aspects.
Eventually the company seemed to hire a crisis consultant and started acting better.
But in the early days the founders were being extremely douchy and PG wrote an article that I was astounded to receive, defending the douchiness.
That was the point that I started to think YC isn't better than the average level of Silicon Valley.
BTW, many YC companies engage in fake traction tactics sometimes ones that cross the line into dishonesty-- for example AirBnBs "we'll spam people listing their places on craigslist while pretending to be someone else" marketing scheme.