NL100 - KK, this is standard right?

[The Good]

I think most of us agree that my line was ok, but a call would have been better at the river. But doesn't anybody got something to say about this?:

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One thing I tought about with this line, is that when I check behind on flops like this I always got a mediocre strength hand (plying against fullstacks). In this hand I would check behind with KK, QQ, Jx, maybe 88-TT and a less likely maybe, weak aces.

It doesn't matter that my range is so weak at small stakes, nobody will have that good a read anyway. But how does the players at medium/high stakes get around this? Do they check behind with some better hands to to merge their range and therfore suffer a loss in value with the hands they merge with? Because it can't be funny to play against good players who know you only check behind with medium/weak hands and just grab the pot with a c/r on the turn.

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