Not saying you message farm, but you can't call out others on it either. Especially on "double posting" - It's allowed. There is no rule stating that it isn't. Triple posting, however, isn't allowed.

I called her out because she could've done it again.She started triple posting yesterday,and still did it despite me making a post on her profile.She stopped when I showed it on her thread.

She stopped because she realised that she was in the wrong, and because she was on her mobile, which she also stated her reasoning behind why.

She only said that after I commented.

Yes, this is because she wasn't sure that she was doing anything wrong.

And that's why I called it out.

I'm not saying you were in the wrong for doing so.

Ok.
But saying that I did it for the extra message...Smh.

I'm saying that you could have messaged her profile or started a conversation with her. That is all.

I told you earlier that she stopped when I posted it on the thread,but not her profile.

That's her own doing then, leave her to continue doing it. It's not hurting anyone but herself. (Hurting as a metaphor)