Neither of whom are moderators. What you (and those 6 other users) are interpreting is an "unofficial list" maintained by me at my own initiative and on my own free time that (by it's own admission at the very top) is "meant to serve as a reference/educational/informational thread, NOT a rock solid list of rules". The entire reason as to why that thread exists is written down at the top as well (additional emphasis added by me):
And the said 'unofficial list' is pretty much what every user has read and understood to be rules guiding the forum, i know it is written as 'unofficial', but let us be honest, that list is where most users get their interpretation of Bitcointalk rules, even when new users join the forum, that it is the thread they are directed to read in order to understand the forum rules and what have you. What am i saying? Since that thread has existed for a pretty long time, was written by a global mod and pinned in the meta section, it can pass to be a 'rock solid' set of btt rules, cause i do not think there is going to be another, now or in the future. And having said that, whatever interpretation made from ones understanding of that thread should be correct.
Coming back to that "usually", now if you were to pay for feedback about your site, you can argue that what you are paying for is more akin to a service rather than a giveaway / game / raffle / etc. In that case, a thread in Services that collects said feedback and pays out for said feedback in BTC is probably on topic (as long as it isn't trying to circumvent the rules with the feedback being just the word "good" or "bad"). However, asking for that feedback to be posted on an ANN thread seems more like a ploy to pump up the ANN thread with activity / posts rather than a legitimate attempt at getting constructive feedback.
If i understood you correctly, you are saying that if the feedbacks were to be posted on OP's thread in the service section then it would be just fine, but since OP isn't basically just choosing any user, but those he feels are constructive posters and would actually make substantial feedback in their ANN thread would that still be a problem. Then again, i have paid particular cognizance to your use of the word "usually", but i still have to say that i have seen a few sites run their pay for review in the same way as OP did and can be found in one of the links i posted above, but there was no eyebrows raised then, any particular reason why?