I'll update regularly.
Most boring opening official unofficial vote.

French Defense, and london System.
French Exchange you mean? I love the French. Leads to fascinating positions...
Also please only pick one.

Petroff defense
Aren't you aware of a trap, that is one of the top traps in the game with this opening?
bruh that trap only woks for players <1000

Petroff defense
Aren't you aware of a trap, that is one of the top traps in the game with this opening?
bruh that trap only woks for players <1000
Yeah.

Petroff defense
Aren't you aware of a trap, that is one of the top traps in the game with this opening?
bruh that trap only woks for players <1000
No, Eric Rosen plays it.
Do you mean damiano variation, or Stafford Gambit?

Petroff defense
Aren't you aware of a trap, that is one of the top traps in the game with this opening?
bruh that trap only woks for players <1000
No, Eric Rosen plays it.
Do you mean damiano variation, or Stafford Gambit?
Stafford
it still sucks unless its your first time playing against it
Ok. There are major yawn-a-thons in chess.
London System (which I play, but I'm trying to get better positionally. And attacking is fun)
Exchange French. (Terribly boring.)
4 Knights Opening. (Only way to make it fun is Halloween Gambit!)
There are many others, and you can vote for those too as long as they are well known.
My vote: French Exchange.
BORING OPENING VOTE:
London system: 9
Exchange French: 4
Giuoco pianissimo/piano: 2
Slav Defense: 1
Petroff: 1
Canal Sicilian: 1
Danish Gambit w/ d4 and queen trade: 1
Berlin: 1
4 knights: 1
Caro-Kann: 1