I've been using Wikipedia since it began, making edits anonymously for many years. In recent years I am became a "Wikipedia Contributor" in the sense of monthly donor (albeit a relatively small amount). When I retired from my day job last year I decided to make my contributions attributable.
My interests are many and varied, as is my knowledge and experience, due in no small part to my age (now in my seventh decade), but also some serious effort, including a master of science degree earned in my sixties (my first degree, in English and comparative religion, was earned in the seventies).