Anyone went back to using bare wires on speakers?

I use bare wire on my Revel F52 and Pass amp..

Copper oxide is an insulator; by contrast, Silver oxide is a very good conductor.

http://www.spearitsound.com/siltech/siltech_faq.htm

I thought I remember reading somewhere that although silver does oxidize it does not affect the sound in any way

Tin the ends and that will avoid most of the oxidation, otherwise it is the way to go.

Used spades for a short while and figured that it's just a waste of money to have speaker wire terminated.
I might implement adding speakon connectors and plugs once I feel that I'll need to plug and unplug speakers often. That's the only valuable plug-connector to have between amp and speakers.