I consider it non canon.

Why?

Loosely.

In a recent issue she kill a lady in a show and nobody notice it including Bruce Wayne.

From her god awful redesign to the lack of understanding of the character, I'd rather pretend New 52 Harley doesn't exist at all.

Well, Bruce is only (Meta)Human. He probably doesn't have super senses, so maybe he just didn't notice? I don't know how it went down though, but you're free to think that.

Personally, I wouldn't think the occasional moment of odd writing is enough to call a series non-canon. Besides, it's a pretty solid series from what I've read of it. Good change of pace.

For some weird reason I don't consider it canon either and I no clue why I do.

Eh, it happens. Batman has persuaded people to commit suicide and that stuff's canon too.

I'd love to see a scan^

I don't care if the writers say it's canon, in my head it's not.

It is definitely canon and I like this new Harley very much. She's very carefree and fun. Grown a lot from being jokers sidekick.

@saren: When has Batman (canonically) persuaded people to have them commit suicide?

At times

@muyjingo: every time he says "I am Batman"

I don't read it, so I don't consider it at all.

When he and Superman fought the Composite Superman, they didn't have any physical means to stop him, so Batman preyed on psychological weaknesses instead. He kept talking to him about how insane it would be to lead the lives of both Superman and Batman, how complicated and nerve-wracking his existence would become, and it affected the Composite Superman so much that he tore himself in half just to stop hearing it. Apart from that there was a bit in Morrison's run where Batman reveals his identity to Joe Chill and then hands Chill a gun to kill himself with after he realizes that every criminal in Gotham will come for him once they know he was the one who created Batman. But that whole thing takes place in this fever dream with real moments mixed in with fake ones, and it's left up to the reader to decide whether it's real or not.

I haven't read that annual, but that's interesting about composite superman. Is it clear Batman is trying to get him to destroy himself, or just trying to distract him? Did he feel/show guilt?

At the end of it Batman says "There was no other way to destroy him", so I'm guessing he meant to. Didn't really show much guilt about it.

@saren: Huh. Dang. Thanks.

I think Amanda Conner and Jimmy Palmiotti said that they weren't sure whether it was cannon or not...