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Reraising preflop is a good play especially against this guy. If he is raising it a lot though (providing he has a good sized stack) isnt that when you want to be calling with speculative hands like low pocket pairs?

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Based on the maniacs raise in the example hand which was 7.5x the BB, drawing hands become pretty worthless. Especially given his stack size. I'd prefer to play big pairs and AK HU just like the poster did. Also, having this guy to your left seems optimal since when you get a big pair or AK you can limp knowing he'll raise and then make a large re-raise when it gets back to you. Also, you can trap players between you and the maniac who call the initial raise with this play.