Fuck yeah, technology connections.

summary: the holes are almost never (purposely) used to secure the plug in the socket. it is often just for manufacturing reasons (but not always, as in this case). it is included in the specifications as an optional feature, so that the holes are not made too big, or in the wrong place.

In the cheap one, we have two perfectly flat brass pieces pressing against each other.

I'll bet you any ammount you want, that's not brass. It's iron with brass coating.

Here is an alternative Piped link(s):

https://piped.video/udNXMAflbU8

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.

I knew exactly what video you linked before I clicked it.

I am very familiar with Alec. Love that channel.

There is no finite life span on any connector.

You obviously haven't used a Cannon or a Neutrik made XLR connector. I have one from the 1970s, it still works like a chram.

Also, take a look at some of the Type F power plugs. If that's not robust, IDK what is.