The fact of the matter is that street safety is a contentious topic no matter where you go. Vulnerable road users are growing in number and visibility, and are understandably frustrated with the status quo of car dominated planning which makes everything more dangerous for them. Putting a ban on discussing this is not going to help that whatsoever.

If you’re seeing uncivil things happening in the comments, and you think it’s overwhelming to moderate it all alone, that’s a clear sign that you need to expand the moderation team, not that the (very relevant) topic shouldn’t be allowed at all.