Neither am I, but I do use that list to provide context about posters and use that to filter out the noise. There are members that always post nonsense, only shit post, or troll. Why waste your time reading that when you can easily filter it out?
BTW, there are some people on this site that are not only triggered by words but they are triggered by even seeing the username of someone they put on ignore. Recent site changes now hides thread in GD of those on people's ignore lists, that way the little snowflakes won't be triggered by even seeing the threads of people on their list.
I wrote an script to pull in the reason someone is on my ignore list. Of the list below I would still read the ignored posts of 3 people if I had time and would respond to at least 1 of them. The context of why they are on ignore is where the value of the Ignore List comes from. A new account that is always trying to get people here to attack each other, why would you want to read their posts when there is an option to filter them out?
The script is how I found the issue I'm reporting. Several people had the reason of "undefined" which means I couldn't pull their ignore reason using their username.