The only time the screws came in handy was when a mild earthquake shook an old crt monitor off the table, and out the window whose lip clearly wasn't high enough over the table. Definitely saved someone a broken neck as people were sitting under it. I didn't set it up, I was just there using it.

Another anecdote for evidence, I have never had an hdmi cable slip, and often have trouble with the ones I've been using for over a decade having to be pushed a little harder than is comfortable in order to fit in. Never warped or twisted, still shiny no oxidation. Just likes to be quite snug.

Of course I don't use very many hdmi cables day to day so it could very well be my cable.