[nly]

None of the nefarious services and use cases you list require the presence of exit nodes. Silk Road, for instance, is a hidden service. Obviously I don't know about the rest, but you'd have to pretty stupid to put such things on the public internet.

The only people who suffer from the loss of Tor exit nodes are the 'more genuine' or 'more worthy' users who need to use it to escape oppression, or state monitoring.

[Nux]

Exactly, the people who need it "the most" will prolly be left without it at some point. From the comments I see for a proper "dark net" we now can choose between Tor (without exit nodes) and I2P, this is actually great news.