The deal was this was in an online game community of perhaps 50 people, total. Fully 90% of it was d20 (D&D, Modern, or Spycraft, in that order).
MY goal was to run something alternative.
At one point, I was running three Trek RPG games a week, consisting of
An Excelsior Class Battleship
A Miranda/Reliant Class Sciences Cruiser
A small Colony Trade Outpost, on a desert planet.
But yeah, he wanted a Jedi in Star Trek, no lie.
TO balance it out, Basically, I was gonna allow the lightsaber to be a phaser used only in melee, with a range of 2 meters. My thought was "Sure, run up on someone with it, and you are a glowing mass from the bad guy firing a disruptor 20 feet away."
But when I said "Okay, so you eventually would like to be this sciences officer, who, when enemy boarding actions happen, you are flipping people across the bridge rails with your mind. And he's not a Vulcan."
His reply was "Yes, exactly. How cool is that?"
So I said, "Well depsite how cool of an experience in cross-genre gaming it might be for you, personally, it doesn't fit my series concept."
He kept pushing it, and was in fact delaying our scheduled game, so I had to ask him to go.
Since then, I have not even entertained the idea of lightsaber-like artifacts.