Heads Up Strategy Question

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In an attempt to expand my horizons I've started to play some heads up and have a strategy question...

Lately, I've been watching "beebopaloobop" (UB)/"Dreamclown" (Pokerroom) play a lot as he's a very good heads up player.

From the BB he NEVER reraises. Obviously, this disguises his hands well and he's checkraising a ton of flops.

Any thoughts on this as being optimal or sub-optimal? Is the rationale just deception and figuring the deception postflop will garner you more bets?

Thanks for any thoughts,

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