According to this meta post, the SE staff has implemented for a couple of communities a post notice for sensitive, possibly controversial topics.
The notice recites:
Controversial Post — You may use comments ONLY to suggest improvements. You may use answers ONLY to provide a solution to the specific question asked above. Moderators will remove debates, arguments or opinions without notice.
We sometimes receive questions about gender issues, harassment etc. that generate many debates: Would such a notice be useful for our community as well?