Question about PageRank.

So I have a blog on blogspot and it was made 2 months ago and at this very moment its now PR 2! I read a lot of guide regarding PR they said you need to have backlinks to cast a vote blah blah blah, but in this case I didn't do anything its just a spam site with a couple of videos and a lots of ads hanging. LOL. So can anyone explain this to me.

Here's the statistics:
Number of posts: 126.
Google Index: 157.
Backlinks: 0.

More over, all contents are just a copy paste around 3 to 4 sentences. Hmmmm

you have 126 posts and 157 indexed posts ?
removed anything?

ronegraT said:

you have 126 posts and 157 indexed posts ?
removed anything?

Click to expand...

yup. Why? What do you mean by "removed anything"? I didn't get it sorry.

That is strange. Maybe people have linked to you and just not appeared as indexed links yet?