I ran across this US Code being used by other bot blockers and anti-spammers to ward off anyone complaining they were being unfairly blocked or publicly mentioned. One site I saw using this as protection was divulging the IP address, email address and member name being used to block spammers which is a bit more than we do for spiders.
It claims this is for the "Protection for “Good Samaritan” blocking and screening of offensive material" and other bot blockers are using it to defend their actions.
I'm not sure if it's 100% applicable to what many of us do, but it sure seems to hold people harmless for disseminating the information required to perform such activities as long as it's “Good Samaritan” blocking which looked a little vague to me even after they tried to spell it out.
Would you use it on your site such as "This site blocks unauthorized access pursuant to 47 USC § 230" with a link?
Think it might make some of the locals think twice?
DISCLAIMER: We don't really discuss law here, nor make legal recommendations, this is strictly an FYI for educational purposes only.