Only when you stop ALL the contact; indirect and/or direct with someone else and you don't give a fuck, it's a fiable sign that he/she doesn't want nothing to do with you and doesn't care, and it's still debatable.

1. First is obvious as you stated, she doesn't want you to interrup her immaculate life with your possible rage ex-lad behaviours in FB. (more possible)

2. In this case it can be the chance that maybe she deleted your account for your ego protection (she's still caring somehow?), because maybe you'll crumble or something if you saw her status with the new guy. So overall she care about your emotions still, or so it seems. (least possible)

3. Do you still give a fuck? (Psst... Wanna a little tip... ... Let it Go, DO THIS!)

...
And better sell more tobacco man, and be more excellent.

Will you?
Seriously.

Will I what?

I meant that 1st point is true. The second one is the last i would expect from someone with Hitler-type personality.

Oh yeah, shure.

You mean this girl have this type of personality you describe?
I meant that if you will "bother her" in FB giving the opportunity... This because she took this kind precautions towards you, maybe you tend to stalk bitches like this, or she just assumes any male still interesed in her would.

Oh, quit bitching man, thought projecting your own flaws and assuming shit about people you don't even know is a feminine trait? Read what I wrote again and maybe you'll figure it out, why I wrote this in this topic.