[user] psa: killfile

"A kill file (also killfile, bozo bin or twit list) is a file used by some 
... reading programs to discard articles matching some unwanted patterns 
of subject, author, or other header lines. Adding a person or subject to 
one's kill file means that person or topic will be ignored by one's ... 
reader in the future. By extension, the term may be used for a decision to 
ignore the person or subject in other media."

https://en.wikipedia.org/wiki/Kill_file
https://en.wikipedia.org/wiki/Plonk_(Usenet)

Perhaps of practical use.