Some members are very weak and vulnerable then discussions are restricted in order to create a cosy and warm environment for all. Then possibility for exchanging opinions is sacrificed.
In other forums (very few), possibility for different opinions, sometimes very extreme ones is valued more and then that place becomes not for the weak.
Personally, I am prepared to very harsh environment like discussing with angry transphobic persons. Then I learn many new things. However I am many years in the "business"
To hear opinions like "people like me should be exterminated on the spot" is a technical matter for me.
We are not all the same and well prepared for the life.