. . . or games in general, really . . .

Do you offer critique and criticism if you win against a really lousy player if they want?

If they want it yea, of course. If they don't I usually stay quiet, or maybe make one or two minor suggestions so I don't sound smug or condescending.

I offer constructive criticism for the people I mainly play against whenever I see them make a really obvious mistake, that would only make all their future games less enjoyable. One time I had to tell someone not to put a targeting computer on an x wing...