But treshold of plain simple XP 20 or even 50 will not, and will lower the noise level some. Even more important, I am sure I myself will feel it as a friendly guide on my first steps in PM, preventing me from embarrasment, pointing into places where gems are stored, ways to find them, and not as a nuisance.

It will also give new meanings to term "initiate" and "novice": after XP 20 you are done with initiating, we do not need to remind you all the time about basics stuff - you are experienced enough to do it yourself... ;-)

It is exactly nurturing and inclusionary in the internet terms - empowering you to help yourself, when and how you need it, instead waiting to some expert to help you. It is about collecting and preserving knowledge of our community in a non-elitist manner, meaningful also for first-time users.

Everybody can still bypass suggestions and post even most stupid question answered in FAQ, and somebody will still answer it (in friendly manner, I am sure), pointing to same FAQ), because person might missed something.

Or do you feel that even XP 20 is way too high?

pmas
To make errors is human. But to make million errors per second, you need a computer.