My main interests as a Wikipedian are popular culture in general and Canadian popular culture in particular (although, admittedly, I haven't contributed much to the latter subject on here thus far), so most of my contributions are related in some way to something that's caught my interest in these areas (even if only tangentially).
I can sometimes be a bit of a Grammar Slammer Bammer, but I also take a number of minority positions when it comes to grammar that are relatively permissive. In other words, I'm not a grammatical fundamentalist.