I would like to see some action taken by BIPS but I think it's highly unlikely unless lawyers & courts etc are involved. 

I probably lost the most BTC (through naively trusting them more than a local wallet at home.  I lost a lot more than 100 BTC, which is very embarrassing (& hugely expensive for me).   I invested when BTC was about $20.

I'm in favour of exploring the legal options, although because of the lack of a legal framework around BTC, even a legal approach may be completely pointless.  Of course I'm also in favour of trying other means for some sort of refund.