I saw that with a page and it works extremely well. Inserting wrong data based on rules (there it was on rate limiting rather than user agent) is extremely hard

I saw that with a page and it works extremely well. Inserting wrong data based on rules (there it was on rate limiting rather than user agent) is extremely hard to detect. The scraper never knows if they see real or wrong data. On the other hand, this will also get wrong data in search engines.