New ask Hacker News story: Ask HN: Why does EasyPost constantly advertise that they're hiring?

Ask HN: Why does EasyPost constantly advertise that they're hiring?
2 by geuis | 2 comments on Hacker News.
(Advertising here on HN to be specific) Basically my question boils down to are they constantly growing and need staff, or is it a rough place to work at and they have lots of turnover? I'm interested in applying but kind of want to know more.