Should this question be reopened?
It was closed by two users (Jason Baker and Slytherincess) as a duplicate of Did Ekrizdis create the Dementors?, but at least one user (hedgehog, the OP) contends that the answers to the existing question don't answer the new one and therefore it is not a duplicate. (For full information, another question mentioned in comments as a possible duplicate was How are Dementors created/born?)
Since the question is currently locked due to other issues, no non-moderator can vote to reopen it. You'll be able to VTRO when it's unlocked, if appropriate, but I'd like to get a sense of the community's opinion now since it might impact on the discussion here.