NOT A GOOD IDEA. Why is it not a good idea? Most snakes are from 50 to 100 feet on average. You would NOT want to plug a high impedance guitar into anything more than a 10 to 15 foot cable length. That just won't work well. A corrupted frequency response and lots of hum and buzz is what you will get.
Those 1/4" connectors were designed for line level monitor and/or headphone feeds. And sure, you could use commercially available snakes to wire from your studio to your control room. Nothing really wrong with that.
For your headphones system in your tracking room, you may want to investigate a master headphone amplifier sent to a breakout box to passively combined headphone boxes? As opposed to those ridiculous quad headphone amplifiers, designed for the control room of a project studio. There really is no convenient way to utilize something like that in the studio unless you put the headphone amplifier in the studio which still makes it difficult to deal with since you have a single box with 4 headphone outputs as opposed to 4 separate boxes that feed the headphones, etc.. And for the central amplifier passively combined system, you won't want to take the amplifier output and feed that up the microphone snake. If you do that you are asking for lots of trouble from inductive coupling and grounding problems. In that respect, you should use a separate piece of unshielded 3 conductor electrical "zip" cord from the amplifier in the control room rack to the headphone breakout box in the tracking room. The ground from the output of the amplifier should not be combined with the ground for the microphones. When you believe you heard somebody say something about using ethernet cables, they were probably trying to tell you that the output from power amplifiers should NEVER USE shielded cables. The output from power amplifiers should always use unshielded cable. That's it. End of comment.
Search Recording.org for the other threads regarding my recommended construction for a central amplifier, passively distributed headphone system.
Ms. Remy Ann David