Not entirely sure what the restrictions of vBulletin boards are, so throwing this out there to see if the amendment is possible?
Though we have the trigger icon as a stop gap for considering whether to view a thread... its still a little open ended as half the time, we the user won't really know if its likely to trigger us until we've seen the context of a post... plus threads are often multi-layered with lots of information... so whereas, part of it might be trigger material, part of it might not be.
As such, I was wondering if there is a facility for introducing a 'spoiler' function:
This way, members are able to code in a portion of the post that hides what they consider to be the trigger information and from the context of the overall post... those reading can make a judgement call on unhiding the material.
Is just a suggestion

and from perhaps my subjective point of view, would give us more control when it comes to interacting with other members.
Thanks for your time
__________________
Independent Mental Health Advocate (IMHA): UK