In what way do filesharing channels affect you again? Oh right, they don't.
- The spread of viruses through filesharing negotiated via IRC is no greater than through any other filesharing method - most of the time the files are the same anyway.
- Oh no, channels on your channel list. The horror.

Filesharing isn't strictly a part of IRC, but it doesn't make any difference to those who just want to chat. The irritable whines of people saying "but it's wrong" are irrelevant, legality isn't the issue. If you don't like it ignore it, you wouldn't even know it was there unless you purposefully look for it.

Bots provide more detailed services to a channel that network-based services simply can't. Once again this has no effect on you unless you choose it to.

The link between filesharing channels with DoS attacks weak to say the least. As I've said they're no more or less susceptible to being trojan filled than any other form of filetrading. The idea that the people on these channels are 'lamers' who start DoS attacks is ridiculous, it's no more likely to happen there than any other channel.

If a network chooses to stop filesharing, either to avoid potential legal issues or personal opinion, then that's fine. It's their network and they can do what they want. But people running around saying that DCC should be removed from IRC clients and that filesharing should be stopped on all networks are just plain wrong. DCC is just fine the way it is (although the ACKs suck), filesharing channels simply aren't a problem.