Most boring opening move ?
I find it's fine as white as you are always trying to do something to develop your small opening advantage. But switch it around and make me play black and it regularly makes me fall asleep. It might be different if I played the Grunfeld or King's Indian Defence but those are very hard to learn.
I'd say any opening move that doesn't immediately fight for central control is boring. 1. g3 bores me. While it's possible to reach sharp positions 1.g3 signals to me that my opponent is looking for a slow positional type of game.
What is your most boring opening move