I mean, while this is technically true, it's also a bit silly to think it's untraceable--many people that attempt to do this get in trouble for it[1]. As someone that owns a Super PAC, while I don't consider myself some kind of absolute authority, I do know some of the regulatory hurdles one must go through. I get it, you watched John Oliver do his little song and dance, but reality is a bit more complicated.
[1] Just to cite a famous-ish case: read about Conservative Strikeforce Super PAC.