[adonese]

In GH in particular, I’m not sure why images are allowed to be rendered in comments at all. They are almost always harmful. External links can be used instead

[tehbeard]

UX of seeing the screenshots for a bug inline outweighs it being used for the occasional meme.

And it's consistent with the rest of GH's markdown parsing for README, issues, etc.

[saagarjha]

Issue screenshots? I work on a video player and almost every issue has a screenshot in it, without which we would be very lost.

[Symbiote]

I find them very useful when working with software with images (e.g. maps), and when users supply screenshots with their issue reports.