Here's a thought for the site.
The sugdenbarbell.co.uk site that Faz and I are on has a powerlifting league and a PB chart. The PB chart has stuff like floor to overhead, jerk, front squat, weighted pull-up etc. It's a bit of fun to see where you rank, though as the site has grown my own PBs have got pushed steadily downwards! The powerlifting league can be filtered by age, equipment etc.
I don't know whether it really fits in with the spirit of MAB, but I'll just put it out there as a suggestion.
Also: is there any mileage in getting some poundage calculators on here for the popular lifting routines? When I want to try a 5 X 5 or a Sheiko or a Russian Squat program, I always search for "routine ABC" xls. Up comes joeskopec.com, and I'm off there. He must get stacks of traffic off those. There aren't that many links for some of the Sheiko routines, for example.
Powerlifts: 500/363/573 @ 220 belt only
front squat: 403
dips: bodyweight + 176 x 4
military press: 232