Useful information to include:

• Add an extra parameter to the monitor_touch giving the entity (Or player name) that triggered the event
• Allows for more possibilities when multiple players are interacting with the same monitor

Understandable, I was just thinking about it usability-wise, not design-wise

This is one of those issues which is awkward, because I get that they're useful, but I don't think they fit with one of CC's main design choices - "don't break the fourth wall".

I think it's hard in this case to argue that monitor would know who is touching it.

All monitors have fingerprint scanners built into the screen? My phone has one, granted it doesn't cover the whole screen but it is in the screen.