They are explicitly missing equity compensation in their pay calculation for #1, so you are taking a pay cut working for basecamp compared to say facebook or netflix. #2 is also present in FANG companies. I would say #3 to an extent too.
FANG has the same "problem" as the video game industry: it is inundated with applicants and can afford to be highly selective and selective in ways that are literally irrelevant to the jobs they have available. Generally for well qualified candidates who don't want to (or in some sense can't) jump through their hoops it's better to work elsewhere: the compensation difference isn't that significant in most cases.
