No. It has done exactly the opposite. Screenplays written by
Dalton Trumbo won two Academy Awards during the 1950s while he was
being blacklisted for Communist influences. A 1953 Oscar for "Roman
Holiday" was presented to Ian McLellan Hunter, who had acted as a
"front" for Trumbo. A 1956 Oscar went to "The Brave One," which had
been written by Trumbo using the name Robert Rich. No one accepted
the award until 1975, when the Academy formally presented it to
Trumbo under his own name. In 1993, 17 years after Trumbo's death,
the Academy gave him credit for writing "Roman Holiday."