Buywalls are one of 2 things:

[1] - genuine, because someone wants in

or

[2] - fake, because someone wants out (and they need to push up the liquidity before dumping)

If all the bids above it are less than 1 BTC and all the bids below it are less then 1 BTC and there's no buywall whatsoever at 60 on Mintpal to match the one Cryptsy, which of the two categories above do you think a 128 BTC buywall falls into.

Buy the all time high with 128 BTC ?

Don't think so.