Instagram is trying to make it more difficult for people you don’t follow to spam you with unwanted DM requests. After testing the feature in June, Instagram now only lets users you don’t follow send a one-message invite before they can start chatting with you.
That message can also only contain text, so that means you should no longer see any unsolicited photos, videos, or voice messages popping up in your message requests. Previously, Instagram let users send an unlimited number of message requests, which could get out of hand pretty quickly.