Done. Tomato shouldn't be anywhere near DT, so this is fine.
Due to current activity of Tomatocage, I am bit agree with you. If in case account controlled by original owner let him sign a message from his/her address. Because his/her thread become most popular, so he/she should have control of his/her address. Since current activity of Tomatocage is suspicious enough, proof of ownership is appropriate IMO.
Of course, if your account is compromised, the hacker could just come back to this thread and edit/delete whatever address you post here, so that's why I'm asking people to quote the address posted by the preceding user in this thread. Here's mine:
1FLnpvdXL6ooBpFj2LHqZxQsrxn2voj5uv