Oh, absolutely. But citing sources is a far cry form the kind of "drop controversial statement, light blue touch-paper and stand back" which, when carried out by individuals, we'd have called "trolling" back in the olden days. But nowadays people can seem to get away with that by being one step removed and instead dropping a link to someone else's controversial or incendiary opinion, or offering such instead of their own argument. It's got to the point where that's become normal accepted behaviour on the internet now, like people don't need to have opinions or make their own arguments when they can just use other people's. I blame social media and its "sharing".I'm all for quoting a source to add to a discussion (in fact, I did so pretty liberally here during last year's Evangelion simulwatch), but I will always link to that source so that a reader can have a look over it themselves and make up their own mind. That way, if, for example, they feel that I'm misrepresenting the info I'm quoting, they can challenge me on that, and so the debate can continue.