So, lets recap.
You have 3000 BTC of funds in escrow.
You have multiple people in this thread, likely people whose funds you are holding in escrow, requesting proof that you have those funds still.
You claim to have moved those funds to an exchange. (A horrendously irresponsible thing for an escrow to do)
You refuse to sign a message or even provide them with an address where the funds are being held, after numerous requests.
You changed your escrow rules in March, to include that you keep forked coins for yourself, months after you already had these funds in your possession.
Is there anything stated here that is incorrect?