Experience.
Playing D&D since November 2017: as DM in a 5e homebrew campaign and as PC in three other homebrew worlds (of which one in 3.5e). Our table might try some other RPGs too (such as CoC).
Background.
In real life I'm kind of a pacifist bard/monk, with a scholar background and the grappler feat. I have a fascination for understanding (musical) systems and creating my own to inspire others to think more freely.
My avatar is a drawing of Vadruk, a kind but paranoid young half-orc ranger: my first ever D&D character.