I prefer to judge the act rather than the person, but it was a HEROIC act. Since 9/11 the government has cut huge chunks right out of the Constitution, and the only terrorism they’ve managed to prevent are plots that were facilitated by government operatives to bring down delusional losers who thought they were terrorists.
Think about an American citizen getting asylum in Russia or China after making the public aware of government surveillance, and that tells you all you need to know.