"You have a great deal of unfinished fics. Wish you'd finish them before starting something new. I'm getting confused."
This comment didn't upset me; people have the right to wish whatever they want. It did leave me a bit confused, though. And I'll admit the timing of the comment gave me a chuckle. *g*
I do have several unfinished fics, and they're clearly labeled that way. So if reading works-in-progress is confusing, why not stop reading them? As a reader, do what's right for you. If it confuses you to read more than one book at a time, then finish one before starting the next. If reading more than one fanfic author at a time confuses you, then stick to one. If reading more than one of my ongoing stories at a time confuses you, then stick to one--or none.
The choice here, I think, is in the reader's hands, not the writer's.
The solution really isn't that confusing.