So I'm watching the Portland System Open finals (I think; I'm sick as crap and feverish, so my memory is unreliable) and at one point in the combat phase, the Ghost player -- with his Ghost facing the board edge -- measures to the board edge. (It's a little out of range 1.) I point it out in the Twitch chat. I mean, I don't know ... for all I know, the one player asked the other if he could do it, and if so, I guess you just shrug.
But what amazed we was how many people argued that measuring to the board edge was perfectly legal. (It's not. You can measure to all the other enemy ships you want, and to other ships to check on ability triggers, but you can't measure to nothing.) A few of us pointed this out, but it did not make a dent. Apparently a significant number of players think that measurement was legal. (Someone opined that it didn't make a difference, and I pointed out that he now knows, 100% that a 2-turn is off the map.)
Where do people get these ideas about the rules? It's the weirdest thing. People just invent rules out of nowhere, and the made-up rules seem to spread. Not like wildfire, but like, I dunno, low-level VD.