I put all manga I can't finish because they are so bad into the unfinished list. Some manga which I started when I was young and have been reading for year, but no longer really enjoy, I put on the 'on hold' list, because there is a chance that I will, one day, go back and finish them for nostalgias sake, I just don't want to follow them on a weekly basis anymore.

When manga is bad I forget about the characters and plot, so if I didn't put it in my unfinished list I run the risk of re-starting it and wasting that time again. I usually avoid bad manga by looking at the points and reading the comments. They usually give4 a good indication of whether I will enjoy the manga or not.

________________
The pen is mightier than the sword...and considerably easier to write with.

I'll try to bear with it for a few chapters, if I still don't like how the storyline is going then I'll definitely drop it right away. I usually put them in my unfinished list haha

I use my unfinished list and on hold list as a dead zone for any manga that I can't make myself finish. I i use the unfinished deemed inappropriate or offensive to a degree that I would not want to read anymore. I use on hold list for series that I won't read because of bordem.
I am not sure if this is the'correct' way of doing thing but I don't care

Story of my life. I find it sadly unfair that all the best artists only draw yaoi.

For the actual topic: I just leave it be or if I really dislike it I'll put it on hold. Nothing to be embarrassed about.

________________