as a matter of fact, it makes sense. since i am familiar with the matter, i would think that at the moment anyway, using IRC for downloading large files, is rather unpractical. good peer to peer (p2p) networks, like bittorrent or emule allow a much faster and elegant way of downloading anything which is ... lets say not exactly legal, since they allow parallel multipart downloads, whereas it is much more complicated to send a legal large file from one specific person to another, with a p2p network.
but if i want to send my self made video of my last vacation in greece, DivX coded to a friend, i can't use p2p, since i do not want everyone to have the possibility to see me at the nude beach on santorini
i will definitely use irc for that.