I say no, just becauase you dont like it, then dont go. Some people (Regardlessr of who they are) still enjoy going to a CityRp, Also you may say that there are a number of reasons to have them banned but;
They are allways run by bad hosts---> Well, if it wasn't a bad host for a CityRp, it would be a bad host for a TDM or freebuild
They allways have annoying players---> If you dont like the players, then dont play with them. And think of it this way, a CityRp server has 10 noobs messing around and being rather pathetic, But atleast this means that they aren't in a GOOD server messing around and causing havok. Simply put, if they are messing around in CityRp then they aren't messing around in another server
There is never enough [T.D.M/Freebuild/Machinima/RPG/etc...]---> Well, if there weren't any CityRp servers, then there still wouldnt be more [T.D.M/Freebuild/etc...] servers. Just because there are CityRp servers out there, it doesn't mean thats why there aren't as many [T.D.M/Freebuild/etc...] servers as you want. It isn't the CityRp servers faults.
You dont like the GamePlay (e.g; Wait ages to get money to buy a jeep)---> Obviously, you dont like the idea of waiting in a game like this, so why play it. Why not go and play on a freebuild server and get that shiny new jeep whenever you want, If you cant take the time, then dont make the (CityRp?) Or something like that. Just don't play there.
So all in all, If you dont like the CityRp then don't play it, nothing forces you to, Just go play somewhere else. And that my friends, is why CityRp should not be BlackListed.