"Blacklisted" terminology make no sense.
"OffLine" is more accurate.
if you want mass adoption, every word counts 
Actually this list is for blacklisting. Offline nodes is unrealiable node and deserves to be blacklisted.
come-from-beyond:
my dedicated node got blacklisted on some other dedicated nodes...
Dont know why? Perhaps of other nodes running other Versions???
I think there should be a blacklist autoremove after lets say 24 hours....
you decrease network size with this mechanism...and we have not enough public nodes
cause everyone is running behind a NAT...