When a machine moderates content, it evaluates text and images as data using an algorithm that has been trained on existing data sets. The process for selecting training data has come under fire as it’s been shown to have racial, gender and other biases.
I came here to say exactly this. IG and all the others are private companies, with their own terms and conditions one agrees on, and also agrees those terms can be changed by them at any time. Moderation of content is part of it. Deal with it, or don’t use them at all.