When inbox categories were introduced, they were fairly accurate in the beginning. Slowly, the sorting has regressed completely. It started with Social emails; they started showing up in the Primary category and now they all go into the Primary category and Social is empty every day. Next was Newsletters. Now, they're all being put in the Primary category. I may get a handful of Offers email in a day but most of those are showing up in the Primary category. So, as of right now, the category sorting of my inbox is completely useless. All of my emails are getting dumped into the Primary category. There is something wrong with your AI, algorithm, or whatever you used to program this sorting, and it is not progressing, it has completely regressed.