That is extremely speculative. I know you're just asking questions, but let's give her the benefit of the doubt. Most people don't do things like that and it's not nice to imply otherwise absent any evidence.
It's speculative, but not extremely so. Most people don't randomly suggest they'd be justified going after other people's families after simple criticism, so let's give everyone the benefit of the doubt.
EDIT: according to other posters, who read the website in question, Sarah Lacy regularly reports on people's personal lives. Which sounds like exactly what the under person was talking about doing back.
