[petercooper]

I only ever correct errors or add extra detail. I've never created an article or written anything substantial, mostly because the risk of having substantial work removed because I didn't "do it right" is extremely unappealing to me (and I could spend the time on my own business or content).

I think you have to be extremely intrinsically motivated or community minded (both good things, of course!) to contribute significantly there because the only reward seems to be happy about a job well done.