Yes but don't you have to be a member just to read the boards?
(I have tested every link on this page so they all work, but if the newer ones are better by all means.)
Not that I've noticed. Some of the board may be members only but the Handbooks certainly aren't. I'm looking at Eldariel's Barbarian Handbook right now on the Minmax Boards without any problem whatsoever.
Just to point out, I've never been a member of either BG or the Minmax Boards, I'm looking it explicitly as a Guest.