[quags]

This would be similar to spam and blocklists. I know people have tried to sue blocklists (maps and spamhaus) but from memory they were not successful in the end. That included blocking email , sometimes with larger blocks with ip ranges not directly involved but in a similar range. Malware being flagged on an anti virus would be similar but in those case the user has an option to exclude the block. Google and Firefox block domains for phishing regularly as well.