Even hosting via Tor can have consequences, if the government has enough incentive.
However, practically speaking, I think the OP would probably be fine posting on AWS, as others have remarked.
And it's a limited concept, in any case. I mean, you'd have no problem hosting anything as a Tor onion site, or on Freenet. You don't "own" either platform, but they're designed to guarantee decent anonymity, and takedown resistence. However, it's all too easy to screw up and lose your site, and perhaps your freedom. So you gotta know what you're doing, and practice good OPSEC.
