Addressing aggression in career-transition threads with constructive etiquette

[AndrewUR]

I'm a moderator for a large professional networking forum, and we've seen a sharp increase in aggressive, dismissive comments in threads about career transitions and salary negotiations. While passionate debate is fine, personal attacks and condescension are driving valuable contributors away. I'm drafting a pinned post on online etiquette to address this, but I need to frame it not as a list of rules but as a positive guide for constructive professional discourse. What core principles resonate most in your communities?