https://techcrunch.com/2019/12/16/instagram-to-now-flag-potentially-offensive-captions-in-addition-to-comments/

Earlier this year, Instagram launched a feature that would flag potentially offensive comments before they’re posted. Now, the social media platform is expanding this preemptive flagging system to Instagram’s captions, as well. The new feature will warn users after they’ve written a caption for a feed post that Instagram’s AI detects as being similar to those that have already been reported for bullying.

It will not, however, block users from publishing their hateful remarks. Instead, Instagram says these little nudges simply give users time to reconsider their words — something it found was helping to cut down on the bullying taking place in the comments section after the launch of the earlier feature.