Search 'from: user' Not Recognizing Valid User IDs

If you attempt to search for messages from a specific user, then they will not show up in the drop-down list unless you have loaded their profile (either via one of their messages or from the users sidebar) in the current session.

Even if you type in their exact user ID (i.e. User#1234) Discord will not recognize them as a member of the server unless you've loaded their profile already.

I find it very strange and inconvenient that Discord's search function only allows you to search from users saved locally rather than everyone on the server.

PS it would also be nice if we could search for messages from people with specific roles i.e. 'from: @mods'