Is there even tutors in this site?
I found this definition on the internet: tutor: a private teacher, typically one who teaches a single student or a very small group
Using this definition strictly, there are no tutors on this site.
But if we may stretch the definition a bit, everyone who answers a question is kind of a tutor. That is, everyone who explains their answer, who wants to actually help the questioner, could be considered sort of a tutor.
Those who post only an answer, such as 2π, without explaining how it was derived, are not tutors. They're just showoffs (I had to change this word... I first had something more colorful, not actually vulgar, but likely to get bleeped.)