In our "post display" settings we can disable avatars, signatures and images on the justification of them being a hefty load time for people posting from low bandwidth connections or from their phones, but there is no option for embedded videos which are usually much bigger both in physical dimensions but also in bandwidth impact. I'd really love if we were had the option to hide embedded videos in forum threads by having it display as a link instead.
I realise we use vbulletin and there are limitations on what we can and can't do, so I'm not sure if this is a realistic option. BUT FIGURED WORTH ASKING. I searched around to see if there was some kind of plugin for the forum and this was the closest thing I found which unfortunately seems to rely on users posting them with a [hide] tag. Lame