HN's polling interface can not forbid you from choosing more than one, so I suppose you could select more than one, if you wanted to.
Personally, I would like to know what everyone's one favorite language is. But if you select more than one, I don't see it as a big deal. That information would also be valuable.
Personally, I would like to know what everyone's one favorite language is. But if you select more than one, I don't see it as a big deal. That information would also be valuable.