My main problem with this thread is fact that Discourse is limited to linear discussions. The papercuts itself are lost here in the flood of possible solutions and meta-discussions like this one.
I also read every comment in this thread but every time I decide I want to tackle one of them, I need to sift through the whole thread and rule out non-actionables again. On the issue tracker, triagers can rename, tag and fill in the details to the issues once and for all. Here, I have to do it repeatedly and in my head.
I did not mean that venting is somehow bad but I would say doing it here has pretty high chance of having no effect other than a temporary mental relief for the poster. I and many other people go through the issue tracker repeatedly and triage issues there or periodically choose ones to fix. If one copies the short paragraph to the issue tracker, there is much higher chance of something being done about it.
I would say that our issue tracker has quite low barrier of entry. I have personally elaborated on or even fixed several issues that consisted of single vague sentence. People can always unsubscribe if the issue is less annoying to them than follow-ups. Maybe reducing the perceived threshold is another papercut we can work on.
If the purpose of this thread is to inventorize, who will do the turning into issues? I started working on this by copying the thread to a text editor but the sheer size of this thread made me give up immediately. So even if this thread has low barrier of entry to reporters, it has incredibly high barrier of entry to implementers.
I do not discount the interest point mentioned by @JohnAZoidberg but if you care even a little, consider opening an issue in addition to posting here.