Well, unfortunately, the feedback was replied to with some irrelevant incomprehensible gibberish:
We would like you to know that we scrutinize the feedback on Turkish Airlines employees/employees of the service provider firms we receive service from, together with the authorized units.
Based on your request, we will kindly inform you that you are in the waiting list. We would like to inform you that we are sending confirmation mail and SMS to our passengers who are waiting respond for their reservation.
We would also like to inform you that hold list availabilities depend on the other passengers cancellation or reissue transaction. Our passengers benefit from the reserve list respectively; Elite Plus, Elite, Star Gold, Classic Plus, Star Silver, Classic. We will kindly therefore ask you to wait for your confirmation.
When you get confirmation, we will kindly ask you to contact with our call center and complete your ticketing process.
The flight is still Y1B0, so it seems like this benefit is quite useless/unreliable.