Widowmaker in Braintree, Long Live (Roxbury and Providence) have great stuff and fun taprooms. In addition, in some craft beer stores you could look for Little Willow.
I believe it is. TH is stuffing any crap they can into their beer because they know it'll sell. That "curiosity" line? Same junk with a different #.
Good example was the Oreo Moment of Clarity. IMO: the base version is awesome, one of the best stouts I've had. The Oreo is just a lame gimmick that ruins it.