If you have an actual practical problem that you need help solving, that can be explained concisely and probably answered concisely, then you are very welcome to post. It's what StackExchange is for. If you want o discuss something, then this is not the correct place, regardless of whether that discussion would be interesting to other members or whether they sympathize with the motivation to start the discussion.
StackExchange is not a forum
I don't understand this view, unless this site is dominated by Wolfram employees paid to suppress bug reports. I have never encountered this attitude on any other product forum, even one hosted by the company.
StackExchange is not a forum. It is a questions and answers site, and has strict guidelines about what is allowed in a post. Please take the tour: Ask questions, get answers, no distractions. It is these guidelines that make it work exceptionally well for getting useful answers.
It all comes down to your motivation for posting
Your question got closed for reasons that have absolutely nothing to do with the (un-)willingness to show bugs here. It got closed because your motivation was to report a bug.
If you had an actual question—meaning you have an unsolved problem, not just phrasing the bug as a question to make it appear as if it fit the format—then the post would have been welcome, and people would have tried to help. However, you made it clear that your goal with posting was not to get help.
Refusing to report through proper channels does not help the community
If you want a bug to get fixed, report it to Wolfram! If you don't report it, it Wolfram won't know about it, therefore it won't get fixed. That is not good for any of us. Personally, I find it extremely irritating when people refuse to report bugs through the proper channels, because I am (very much!) annoyed by bugs too, and you are not helping to get it fixed.
Bugs should be checked by others and if confirmed, added to a list, a sort of "Hall of Shame".
If you want to shame Wolfram for not fixing bugs, no one here will prevent you. But again: do it through the correct channels, i.e. through a forum. Currently, there are only two popular places I am aware of where such free discussion can take place: (1) Wolfram Community and (2) the chatroom of this site.
That there is no independent Mathematica forum is perhaps regrettable, but that does not mean StackExchange sites can be turned into a forum. In fact, while StackExchange sites are largely steered by their community, StackExchange the company can step in at any moment, and would absolutely not tolerate turning any SE site into a discussion forum.