Clearly.
I'm glad you put welcome in quotes to show irony.
Hahahaha. Well, I will say something that is likely controversial, now, which I haven't said before and comes with experience including recent experience.
You can have an open board, or a good board. You can also have both but whenever a decision comes between two guiding principles you have to pick one over the other. I would pick a 'good' board and as such I would discourage topics that are not interesting to me.
What that means, specifically, doesn't matter. I realize that it makes me a censor, or whatever, but if it were up to me conspiracy theories and the like would be gone. Yes, I am evil, but my experience tells me that
**** thinking perpetuates itself and makes for a repository for garbage.