Before we relied on YouTube uploads and links to allow videos on the forum, but from today this in no longer necessary
You can now attach video files directly to threads / posts / guides / wherever and they will be stored on the forum servers, so no worries about them going missing in the future, hurrah!
There's a 50MB limit at the moment which should cover most uploads (unless everyone is sending 4K ) - but we can look at modifying that in the future if need be.