The FAQ is a little out dated on that topic. It was also written before these types of services evolved. It was meant to curb spam lottery type posts that were common at the time. Still are but not as much.
These posts generally consisted of copying the same content over and over asking for upvotes in exchange for a share of the posts payout.
I think you mean
while this is about
Nonetheless are you referring to posts like this https://steemit.com/steemit/@brandonfrye/win-steemit-dollars-sbd-with-your-comments ?
Or only if it is the same content over and over?
So basically it is allowed to ask for money in order to upvote posts like this https://steemit.com/art/@red-rose/400-new-offer-from-7-01-2018-to-8-01-2018-400-upvoting-value-for-your-posts-by-red-rose ?
Also with tags not matching the content?
Then I suggest to update the points in the FAQ: https://steemit.com/faq.html#What_is_considered_spam_or_abuse