Scraping is a grey area, even if other companies you advertise how to scrape didn't send you letters yet, they will once your product starts being popular. I'd

Scraping is a grey area, even if other companies you advertise how to scrape didn't send you letters yet, they will once your product starts being popular. I'd advertise it as automation tool only, without any concrete examples. And maybe create an "unaffiliated" forum site where users share their own scripts that just happen to scrape this or that ...