Add a code word or number to your profile like "If you are a recruiter and want to contact me about a position, please put this number in the email subject to c

Add a code word or number to your profile like "If you are a recruiter and want to contact me about a position, please put this number in the email subject to confirm you saw this text and isn't a bot". 99% of the time a "recruiter" contacts me, it's a sweatshop spam recruiter who invariably says "Your profile looks interesting" and of course, has not seen the profile.