I use Wikipedia a lot for personal and professional research of different subjects. In the course of reading pages, I correct grammar, typos, clumsy wording and other minor errors where I find them.

I am not interested in more substantive editing, which requires not only a deeper understanding of Wikipedia policies and regulations, but also time. I don't have the time. I have more important ways to spend my time. Important to me, I mean.

Also, I do have a sense of humour, though it might appear that I don't. However, I don't like vandalism or joke edits to Wikipedia and revert/delete all such edits whenever I come across them.