Other boxers telling Golovkin what weight he has to fight at is getting silly. If they aren't comfortable with the middleweight limit then they shouldn't box there. Can you imagine Hearns or Duran telling Hagler he has to come in at 155 or 157? Golovkin is the middleweight champ, if they want to fight him, then they need to do it at middleweight.
Don't see why that'd be an issue for Golovkin - showing he can come down a few lbs before a Canelo fight. Never really understood the total aversion to catchweights - a fight such as this (as unlikely as it is to happen anyway) would never be possible without them. Why limit the fight possibilities simply for some arbitrary weight category?