Scraping Pictures and Following Users

Hey all!

I was wondering if you could share some best practices in regards to scraping pics for the niche that your in and what users do you actually follow?

I've heard just to scrape pics from the largest accounts in the niche and then to follow the followers of those accounts. But, if I do this, won't the followers remember that the pics are just from the larger accounts?

Any advice/tips would be appreciated!!