Concern...as...

Hello guys! I need your help again!

"There are several reasons why MySpace rates are lower. Some advertisers are reluctant to be associated with the freewheeling site, which has concerned some as a potential hunting ground for sexual predators."

"which" refers to MySpace
"some" refers to advertisers

Is it correct to understand the original sentence
"...which has concerned some as a potential hunting ground..." as
 "MySpace has concerned some advertisers as a potential hunting ground."?

What confuses me is the word "as", which makes me think that advertisers are potential hunting ground, not MySpace.
Can you make up another sentence in the form of "A concerns B as C"?

Any help would be appreciated!

The entire article:
[link]

Hi Marius, thanks for the reply.

To me, the sentence "MySpace has concerned some advertisers as a potential hunting ground." sounds more like that advertisers are protential hunting ground, not MySpace. Whenever I see "A as B", A and B are directly related. But in the sentnece above, advertisers have no relationship with hunting ground.

Maybe the way I asked my question was misleading.

All I've been trying to ask is this: (can you please just focus on this single sentence)
"MySpace has concerned some advertisers as a potential hunting ground."

After reading this sentence, would you see MySpace as the hunting ground or advertisers as the hunting ground? I'm asking this all because of the word "as". We all know the author's trying to say that MySpace is the hunting ground, but does "as" make advertisers the hunting ground? (which doesn't make sense)

Starstuff, I understand your confusion.

In a construction such as Sarah views Mark as a predator, Sarah thinks that Mark has predator-like qualities. (I could also write a sentence like Sarah views Mark as a predator would, which means that Sarah is the one with predator-like qualities.)

If you did not have the knowledge already about MySpace, I can see how you could come to your conclusion, based solely on word position, etc., without regard to logic. But if you take my sentence, and transform it: Mark is viewed by Sarah as a predator, you have the same contruction as in your confusing sentence, I think. The site is viewed by some as a hunting ground.

I think that "concerned" leads to an odd construction.  If it had been "concerns some as being a hunting ground" it may have been better.

But better yet would be Some are concerned that it is a hunting ground.