Hold high-uptime nodes to higher bandwidth standard
If http://torstatus.blutmagie.de/ is to be believed there are many, many nodes with effectively no bandwidth, some of which have long uptimes. I propose that nodes that fit this description be flagged as Invalid.
When you've been up for 6 months and have an Observed bandwidth of 0KB/sec there is a problem with your node. Maybe its mis-configured somehow, or the owner's ISP blocks Tor traffic, or a cosmic ray hit your cable modem. In any case, that node is not participating in the Tor network. See node "op56", flagged as Fast (!), for an example.
I suggest that minimum bandwidth requirements be tied to uptime duration. For example, a node that has been operating for a month must have at least 20KB of Observed bandwidth to be considered a valid node. This would allow nodes to demonstrate low-bandwidth while ramping up to their configured bandwidths, but prevent zombie nodes from falsely claiming to be capable of carrying Tor traffic.
Trac:
Username: tmpname0901