It seems to me that one of the more serious problems on this site is that a good question often ends up getting erroneously closed.
By erroneously closed, I mean that the OP's thread is marked as a duplicate and a link is made to a thread that doesn't have a proper answer to the OP's question.
It is understandable how this mistake can be made by a high-rep-count member who was trying to be helpful: the member could have misunderstood the OP's question, or the member could have misunderstood how the linked thread doesn't really answer the OP's question, or perhaps the member wasn't aware of the grammatical issues that were actually involved in the OP's question.
After a short period of time, I'd expect the member(s) to get better at it: live and learn, so to say.
When votes are taken to close a thread, I'd hope that there would be some members voting who would see that the closing would be erroneous, and so, prevent that closing. I would hope that's how it works. But in actual practice, it doesn't seem to be working out that way.
I've seen numerous threads closed as duplicates, and when I click on the link to the thread that's supposed to have the answer, I often find that the thread doesn't address the OP's question, or when it does, it has a bad answer. Often that old thread simply has bad info throughout it. This has happened many, many times.
The procedure for closing threads as duplicates might need to be tweaked. It probably should be changed. It needs to be fixed, imo.