I can understand what you are saying. Feeling shocked and overwhelmed by some posts, you're looking for a way to prevent the hard emotions that you sometimes feel. I can relate to that as well.
Your idea sounds doable, to some extent. Experienced members could easily add the info to their titles. PC members who are less experienced, on the other hand, may have a difficult time implementing this type of change into their triggerring posts. And new members, well, they may be the toughest.
Your idea is still advice worth thinking about, in my personal opinion.