Deny them that fun. If you have a hand that warrants a raise, raise. Punish them for their delusion. A seat is only lucky as a function of the butt that's planted in it. If you're a bad player, then changing seats will only move the so-called bad luck from where you were to where you are.
Seat changes are for strategic reasons only.
You make a seat change to put yourself in a favorable position against an enemy. Save your ego for the winner's circle. Poker should be about cards and chips and winning. Save your ego for the winner's circle. After you've proven how good you are, then you get to boast.