Show large images as thumbnails in comments

We often add device screenshots to Bitbucket comments to discuss about visual glitches and bugs. However, using screenshots from a retina device is painful, since these images are shown in full size within the Bitbucket discussion list.

It would be awesome if Bitbucket would automatically show an image thumbnail, as soon as an image exceeds a reasonable size. Clicking on the thumbnail should then reveal the original image.