It never was so far. Maybe we should start encouraging new posters to find good ways of coping with such feelings instead of shielding them from more and more "political" subjects?
We used to be stronger as a community.
In the real world the inability to avoid mindkilling will cripple anyone's rationalist dojo.
In the real world a dojo (rationalist or otherwise) that anyone can walk into at any time and join in any of the exercises without any filtering or guidance or partnering is pretty much guaranteed to end up crippled.
The last point reminded me of speculation from the recent LessWrong article Conspiracy Theories as Agency Fictions:
Before thinking about these points and debating them I strongly recommend you read the full article.