Pinterest problem

I emailed them twice asking about where the line is drawn on their "spam" policy and "misleading policy" but got automated replies back telling me to look at the help section.

I asked them this:

"Hi there, I was wondering if the URL in the pin had to be the same as the website it is pinned from?

For example, I pinned a pretty picture of a coloured hair extension, would it be ok to change the link of the pin so it links to coloured hair extentions the viewer might be interested in?"

- Do they hold it against you if a lot or most of the urls of pictures you've pinned have been changed to your site? Or would they rather you left the URL from the page where the pin came from?

If the answer is the latter, why bother adding the edit URL option to begin with?

I replied with:

I had a look at the terms of service and didn't find anything - " Accounts that mislead or deceive others may be updated, transferred or permanently suspended" - I was wondering the scope of this. For example - would linking a picture to a website related to that picture (like I said - multi coloured hair linking to a multi coloured hair extension website - even if the image wasn't posted on the website page) be "misleading"? I'm not sure where the line is drawn."

And I still don't know where the line is drawn. Can anyone give me a heads up on this - if you know pinterest very well?