EDITED:

I just back into skyrim and apparently the progress bar on the NMM is bugged. Thought they were only giving me 10 kb/s.

My guess you picked a really bad time to download stuff from there or your internet connection was on a fail (happens to me sometimes). Since with a normal account I can usually download up to 450 kb/s on a single file whenever I download something and can easily download about 3 large files at the same time. Dissing Skyrim Nexus for "lack of respect to it's users" is highly insulting to Dark One and the rest who run that site.

Artorius.

The thing about Nexus Mod Manager is... it's still a beta. Manual download is always still available.