When embedding an image using the markdown editor, is it possible to specify the image dimensions? It seems that both of these do not work:
Inline HTML:
<img src="https://i.imgur.com/25Magmb.png" width="123" height="123">
Some markdown variant I found on stackoverflow:

I've been similarly frustrated trying to get images to scale on LW, so looking forward to an answer (although maybe the new editor just eliminates this problem, outside using markdown?).
I am also running into this problem now with the Markdown editor. I switched over from the new rich editor because that one didn't support footnotes, whereas the Markdown one does. It seems like there is no editor that can both scale images and do footnotes, which is frustrating.
Edit: I ended up going with the rich editor despite broken footnotes since that seemed like the less bad of the two problems.