Reddit expand media and comments

Shows pictures and some videos right after the link in posts and comments.
Expands comment threads in the visible page area and in the immediately adjacent area.
imgur quality can be specified using Configure command for this script in your userscript manager's popup, the default is h for huge preview 1024x576 px JPEG, entering an empty string would expand to the full image.

Currently supported media:

Developed in Chrome + Violentmonkey so it should also work with Tampermonkey or in Firefox.