You can now embed Instagram posts. It will show a preview. Clicking the media will redirect you to Instagram, which means that you can’t play the video directly on the forum post, but that’s better than nothing 
Video:
https://www.instagram.com/p/CX_lIBNI-yC/
(there’s a tall white space at the bottom 
, but I can’t fix this)
Picture:
https://www.instagram.com/p/Cf9MHYosgoB/
Gallery:
https://www.instagram.com/p/CgCkwu8ueDF/
(very minor feature)
Also, you can now edit your pictures upload titles directly in the post editor preview:
Images titles are used in place of the pictures when they are not shown, for example in an excerpt.
Example with pictures of which titles weren’t set (it uses the file name by default):
Example with a picture of which the title was manually set (A beautiful magpie):
Obviously, only a few people will take the time to rename their pictures, but since the feature is here, it’s worth mentioning it. 