It's very common to find recruiting messages in browser dev console, for Chinese companies, e.g.,
...
...
Some of them get pretty clever, like a hidden element that says something funny
The funniest thing I saw, is I was looking at an API from a top-tier tech company and the person who wrote the software had message in it containing words of frustration. Like swear words.
But, the weirdest thing I usually see is how the flagship of some top tech company can't make their website responsive when all you have to do is change a few of lines of code.
Or when they upgrade their UI/UX and they just broke a lot of features.