Depends on who you declare a "Troll" and on what actions. I guess this site will have both in equal numbers. Both means the people termed as "Trolls" and the "Self Labeled Angels" who would take less than a minute to judge someone as a troll. Psychologically they are both the same disorders but on the opposite sides. If you see that this site allows anonymity in profiles, it means that one can discuss openly on issues which are difficult to discuss in social circle (we often live a masked life). Secondly the filters are there. So respecting the first aspect and using the second will never raise the so called troll problem.