We occasionally have posters complain that they are being blacklisted and responders saying "no such thing". While that is mostly right, it is not always right. I was going over a newsletter received today, and two different court cases discussing blacklisting were discussed. Sexual predators are functionally a type of blacklist for certain types of jobs. Apparently there are third party blacklists maintained for teachers which schools mostly are not required to honor but sometimes do.
I am going to suggest that most poster complaints that they are being blacklisted likely are nonsense, but for certain professions, maybe not. I am going to suggest that maybe a little care in answering blacklisting question maybe in order.
Just my opinion.