I specifically remember seeing a lot of graff on the R-lines long before Kunt and Syphi ever came to town.
the Amtrack/R-lines from Univercity city area all the way to JFK was like a wall of fame.
I even remember seeing Razz, Rob, Dane, Suroc, Braze, Jay-Cee, Estro, MrBlint to name a few all through west and southwest on the R-Lines that was still riding from the 80's.
Nope, Nemel, Enem, Credit... the list goes on.
The R-Lines were definitely bombed back in the day.