Might be an example of the Goomba Fallacy [1]. Though that brings the interesting point of how could you ever know whether the same person/group has contradictory beliefs if you aren't seeing the exact same account posting an example of it. It seems like it could be an easy out to just say "Goomba!" whenever hypocrisy is observed.
[1]: https://en.wiktionary.org/wiki/Goomba_fallacy