I challenge anyone who's fedi experience is improved because of image, GIF, video, or audio captions to take the time to personally thank at least 3 different people each week for describing their media!
Should it be expected at this point? Yes in most cases I think so. But reminding people that taking the time to do it is making a tangible positive impact, and causing others to see the social benefits at the same time is a great way to encourage people to do it more.
If you can't find many examples on your personal feed, just use the media only filter on your local and federated timelines; they shouldn't be too hard to find after that!
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