The usual understanding for me is that guidelines should be read and followed, while FAQ provide additional information on topics that are asked a lot (password reset, what does XYZ mean, etc).
[1] https://news.ycombinator.com/item?id=12073675
So what is prohibited is to share the direct link?
What's not allowed are asking friends or teammates to upvote and/or post booster comments in the thread. Those are forms of gaming the system which the community here is not ok with.
People should upvote or comment on things that they personally ran across and found intellectually interesting, not because they or a friend have something to promote.