bittorrent: why UPnp?

anybody know why bittorrent added Upnp port forwarding as its feature?
i mean i read about upnp in grc.com and this thing doesn't seem good
comments please...

btw, here's a question...
i have heard lots of problems where ppl with routers complained about "unable to forward port via UPnP" error in BitTorrent.
i dun have a router but i do have Sygate installed, i dun seem to have that kind of problem. how come?


thx,
gildan2020

If you have a router just port forward it and its ok.

http://filesharingtalk.com/vb3/showthread.php?t=83827

Upnp isnt good but its a nice idea. I think it just auto opens ports for you in your router, as you don't have a router turn it off (like I'd advise every one)

i once tried UPnp but it really it isn't worth the risk. I'd just do a simple port forward before exposing my connection to hackers and viruses.