I asked this question, and I specifically detailed in the answer that I needed to do it without a subquery over the full table. I am looking for a way to do it like MySQL does, or use a library that has GROUP_CONCAT() built in as an aggregate function, or if I have to a custom C# CLR .dll. I even outlined why I cannot use a subquery / "The usual workaround for SQL Server" and showed that it would take 4 years to complete.
Someone commented pointing to a 'similar question' that only has subqueries as the answer. I again explained that I was looking for a solution without subqueries. I then got my question downvoted (likely by that user).
Now, despite my efforts, there is a 'Possible Duplicate' banner at the top, again linking to the answer with subqueries. I have edited my question to make it clear both in the title AND in the first sentence that subqueries are unacceptable.
How can I remove the 'Possible Duplicate' banner, or if I need more rep ask it to be removed?