Note that #3 is one of the "let's see how far we can bend that definition" things too. You will occasionally see this listed in a local newspaper classified postings ( https://imgur.com/W76Jdbn is one such example).
The worst, most bad-faith case I've seen of "advertising" an H1B job was of the job posting printed out, taped to the back of an interior office door, and covered by the recruiter's hanging overcoat.
