So was Orewell a writer in influencing people to not go into a Communist government?

Actually Orwell was, by his own admission, a "Democratic Socialist" The novel Animal farm was not so much a critique of communism rather than of Stalinism. Although Stalin held communist ideology, his rule was absolute, brutal and terrifying. I have read that Orwell has regretted right-wing idealists using his stories, like Animal Farm or 1984, as cautionary tales. He believed in the socialism as a good way to share and take care of each other. He was, however, weary of any ideology taken as ultimate truth.