I stumbled across "we hire" messages across Paypal, Techcrunch, and dozen of other websites, even no-name startups. You can find them in headers, CSS, HTML, JS and all over different places.

The thing is: the message neither changes the recruiting process nor company values, so it does not matter if you come from X-Header or company/careers. This cryptic message thing will only get you "oh cool" reply from recruiters. If you are a good engineer you'll be hired no matter of these messages, if you don't fit the company because of who knows why - you'll not get there anyway.

Engineers, thank you for giving me a bit of hope or fun ¯\(°_o)/¯