'1. darthknight himself should declare that it was his mistake and he did not mean to send it to bittrix.

Darthknight:

Worse, my funds are being transferred weekly to a scam account, because I made a mistake when trying to withdraw those funds. I am unable to fix this mistake now, because the operation to stop it is also being frozen by the Steem witnesses.

I think he made that obvious on the blockchain.

He cannot prove he is unable to change it now because of 22.8888 and the witnesses supporting it.

'2. it needs to be confirmed that bittrix is not owned by the owner of darthknight (in other words, "alt")

Only if someome is offering compensation. However I understand thisnto mean no one will help him until he proves it.

How do you suggest he proves he doesn't own it? If he owned it, he wouldn't be in this mess and steem witnesses have nothing to worry about.

You've only proven that darthknight is cooperating with blocktrades and trusts him which is reasonable and expected.

I wouldn't take this gamble. This seems to be an unreasonable demand given his account is frozen. It's like throwing someone into jail then demanding they prove their innocence before helping them.

It may be a trick, but even if he owns bittrix, his funds are still locked which is a definite problem.