The last entry already has an indicator - like a closing bracket. > Having to add a comma when appending to the list doesn't seem that bad to me as a trade off

The last entry already has an indicator - like a closing bracket. > Having to add a comma when appending to the list doesn't seem that bad to me as a trade off. Then do that! No one is forcing you to add trailing commas, they're optional and for all the other people who don't think they add value