Hmm. Off the top of my head...
Anything written by Dakiom, Coconut Audio or the maker/seller of Tri-Phazer products.
The main thing that makes my BS meter go off,
or just plain annoy me are the reviews/threads that extol the sonic benefit of changing their existing outlet wallplate cover to those fancy carbon fiber type covers that are over $85. How does a cover change/improve sonics of a system? Your outlets vibrate so much and it impacts your equipment. C'mon man.
The rest.
WA Quantum Chips.
A sticker on my gear is supposed to improve sound. I just can't believe it. It is BS to me. I wonder if anyone has put these chips under a microscope to see what is on them
Audio Magic Liquid Treated fuses and other big big dollar fuses.
I just can't wrap my head around this stuff either. I can believe in cleaning the fuse contacts or contacts in general but a big dollar fuse is going to take a system to a whole new level.
I'm sorry if I'm offending anyone who has these tweaks but I just can't believe they make that much of an improvement to a system if any. I haven't tried these tweaks because I can't get myself to just fork over hard earned cash to try this stuff.
I'd rather use that money to buy music or other gear to try.
Can't wait to hear what others have to share.