Honestly I am not fond of the word "triggering" as the sense that it is used on the internet lessens the meaning, IMO, as compared to the actual idea of psychological triggers as they refer to things like PTSD. Also, people who have diagnosed "triggers" spend years working to overcome them so they can function in the real world while, on the Internet and amongst people who spend a lot of time on the Internet, people seem to expect the world to change for them.
It is kind of how people get angry if you don't list "trigger warnings" on fanfic--a very new idea that has only come about in the past few years. Well, guess what? Books, movies, lectures, interactions with other human beings... These things do not contain trigger warnings. The closest are vague warnings that some material might disturb people.
I know this is not a popular thing to say on the Internet, but as a former special needs life skills teacher I believe that part of living a healthy life is learning to manage your triggers so that you can participate in life and interact with other human beings without fear. The world is not going to walk on eggshells for you, and, to be honest, they have no responsibility to. While it is great if people do go out of their way to make you more comfortable, it is your responsibility to work on yourself. I know the Internet has normalized the idea of triggers, but these are not healthy things that everyone has that should just be accepted at face value. They are psychological issues that need working on in therapy so one can enjoy a normal life. Accepting triggers as the norm is similar to accepting an anxiety disorder as the norm and never leaving one's house because it makes you too anxious--it's just not a healthy way to live. I think the way the Internet portrays triggers undermines this and makes many people (especially young people) believe that the world will be accommodating them when, in reality, they need to learn to function in the world.
I don't mean this as harsh or a criticism of people with triggers, but I do feel the need to speak out on this subject when it comes up because I feel that people are going to get an unpleasant surprise when they have had so many Internet friends walking on eggshells around them and they go out into the real world where trying to talk about your "triggers" will make people question your mental health and will probably turn you into the pariah of the workplace. We should be trying to FIX our trigger issues, not just avoiding them.