More importantly in this context, I am an intense user of WP (fr|de|en), which I consider being one of mankind's most fascinating creations. The biggest attempt at any rate at summarising our understanding of things --- and what counts more, at making the latter accessible to larger parts of humankind --- since Denis Diderot's Encyclopédie. Consequently I try to occasionally make a humble contribution, correcting and adding little bits where I can, on my peregrination through Wikipedia's jungle of knowledge.