Most episodes of "cable pulling" are most probably problems with connections and client-side resource problems.
low throughput Dial-up connections, ping attacks, players with client machines full of spyware, malware, keypad loggers, lots of threads running in the background, lack of memory, BitTorrent, overworked low-end processor, IM running, even interference from anti-spyware and anti-virus programs or backup software (Automatic Update, Norton Ghost, .....).
You saddle up behind someone, open fire, and the number of rounds or tracer fire his system is trying to render over an overtaxed machine connecting at 44 kbps causes a "timely warp".
Now, "cable pulling" is a rough term for any techniques used to generate a warp or work around in a game. Physically manipulating the connection, use of 3rd party software, ping throttling,...
It's online gaming. It happens. Some people will do anything for any edge, hence the reason 1/4 of all the planes flown in the LW arena are La-7, Spit-16, Pony-D, and Niki. Lift with 25% fuel to fight to stay light, and end up ditching when out of gas. Some people just take going for every edge to extremes.
All part of online gaming.
But most of it is connections and performance, not intentional.
As long as the game support narrow-band connections, as long as interference in internet connections happen, and as long as people don't maintain their own computer's to some degree against malware, you will see these things.