It actually works in the opposite direction: we moderate HN threads less, not more, when YC startups are the story. Lots of past explanation: https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu....
That said, customer-support-of-last-resort threads have been so repetitive lately that we started downweighting them more in general.
I was going to link to https://news.ycombinator.com/item?id=34320816 and then I saw that it was the reply I posted to you last time! Nothing has changed since then.