Question about Affiliate Marketing on Pinterest

[Nick Green]

I'm new on Pinterest Affiliate Marketing, I just started less than one week, and I have some questions.

1. Why does everyone want to create their own landing page instead of directly using it from the Advertising Alliance or the company providing the ads?
2. What's the Pinterest policy about 301/302 direction? How do I use my own domain instead of a domain from Bemob or MaxBounty? I only post my domain with 301 redirection 20pins in one hour per day and Pinterest marks my URL as spam, but why does a shorted URL from https://bitly.com/ work fine?
3. What's the Pinterest definition of spam? I heard from I can post 1 link/1 time/1 week to 20 times every day. I just posted 20 pins per link, 2 links a day, and only got less than 1 impression a day, is that normal, or have I already been banned?
4. For Pinterest anti-spam, quality or quantity which is more important? I can generate 1k-2k pins with text and on average quality every day, how much should I post?
5. Will Pinterest Developer account and official API get me out of URL redirect spam check?
6. How to avoid 429 Client Error: Too Many Requests for url: https://www.pinterest.com/resource/PinResource/create/ when using https://github.com/bstoilov/py3-pinterest
7. Does using a server/data center IP make my behavior more likely to be marked as spam?
8. All the pin I mentioned is organic pin not paid pin.

Thanks!