Also, I'm not seeing where in the contract it states that they would lock their shares...
Go to btct.co. Click on "Market" then on "News". You should find all you need here. My God.
I'm still waiting for you to find it in the contract. However, if they have agreed to it and publicly stated that they would lock %75 then they should follow through. (Though i don't personally feel it to be necessary)
If they lock their shares, then they are forced to profit from their own dividends rather than price manipulation (because they can't sell their shares). This gives them more incentive to publically mine without hiding it.
Has any other asset manager done that?
Who cares what other asset managers do, it's a move that increases shareholder confidence for reasons I mentioned..