

While I would say sending MAC Addresses and Wi-Fi names is very far from tracking everything you do on the internet, this highlight another very important point: The routers that provided by ISPs are usually very cheap and crappy, and this in itself security implications.
Like this example of pulling a script from an unverified HTTP source and executing it as root 🤯… Not to mention that firewalling and port forward configuration options may be pretty simplified and limited.

You’re saying this as if there isn’t multiple piles mixed fresh and dirty clothes with an O(n^2) complexity to find something you want.
I personally prefer to have my clothes indexed in an ordered storage so I know exactly which row in the drawers clean shirts are in.