GFork

→ the program is case-insensitive
→ you can choose the symbol to split the usernames (default is a comma) ('*' not allowed) (max 1 character)
→ put a * in front of a word for wildcard (only in the blacklist!), it will find the word no matter its position in the username (example: *vevo)
→ it also hides videos from the playlists/mixes, but it doesn't prevent them from playing if the playlist is in autoplay (download another script that disables autoplay!)
→ ☆ force a new search (in case of problems?)
→ you can suspend temporarily the block (to reactivate it just click on the star/save or refresh the page)

please report any bugs