All the manga I include in this list is just based on my PERSONAL OPINION, it's not meant to be offensive I'm just giving my personal critique. This list is for yaoi manga I personally didn't like, it doesn't mean I don't like the mangaka it just means I didn't like this specific work. This list is honestly just made for myself that way I can remember which mangas I didn't like, so please don't take offense if one of these is like your favorite or something.
