I'm sure some companies use easter eggs as marketing/recruiting tools.
That said, I've put a small number of user-facing easter eggs in publicly-traded MegaCorp code before. In every case, it was an inside joke among devs that the higher-ups never knew about it. The C-Suite is uptight and we definitely would have been reprimanded if they were aware.
I don't say it's bad. It's commercialized experiense and it's cool if you love it. I just wouldn't treat it the same as devs fun of hiding things for valuable user who loves their product and I'm talking from dev prospective, not user.
That said, I've put a small number of user-facing easter eggs in publicly-traded MegaCorp code before. In every case, it was an inside joke among devs that the higher-ups never knew about it. The C-Suite is uptight and we definitely would have been reprimanded if they were aware.