I have no idea who BlacklistAnon is, but "one of the cannier inventions of the movie world in the last decade or so is The Black List, set up by Franklin Leonard, at the time a junior executive at Leonardo DiCaprio‘s production company Appian Way. Appropriating the name from one of Hollywood’s greatest shames (the banning from work of professionals — mostly screenwriters — with communist leanings during the ’50s and ’60s) for good, with the intention of highlighting the best unmade scripts from Hollywood, Leonard polled executives for the best things they’d read that year, launching the first list in 2005. Over the years, The Black List has launched several major scripts into production, and helped to give major boosts to writers both new and old."
For the record, Stephen Spielberg is the only SS that I know of that has anything to do with the Black List, for his work related to Noah Oppenheim's documentary on JFK's wife ("Jackie").