First of all, the posters were not obviously satirical (as evidenced by the letter I linked). The intent of the posters only matters if you think MIT left the posters up because they had a leftward intent but a rightward message. But MIT made their decision before knowing the identity or politics behind the posters. This isn't the only example, but it is one that straightforwardly shows that MIT is consistent with regards to its free speech policies.

You accuse me of arguing dishonestly. Instead, why don't you present your evidence that MIT has acted against its policy in an official capacity?