my fear is people are going to post issue reports, sometimes good ones that we need to act upon, they get autoclosed, and the submitter either never bothers to re-post or they are so annoyed that they don't re-post.

it would be way better if there was only one way for them to get their content in, in the first place

In our case, we've fortunately not found that's happened - we do end up looking at Issues that are closed in this way, and the majority of cases it's someone who's raised a Discussion and want to bypass the triage so create a new Issue from their comment

(I'm thinking of getting some data and words together to look at how this has helped us over the last ~18 months)