I've just looked at his account on twitter, and he's ex military, in the US, who retweets a lot of missing children appeals (including commenting positively on arrests of those who abuse children. Also follows a number of US political parody/satire sites.
There is one tweet I can't see (as I have some content blocked) so presumably that's the one where he mocks and wears a nipple clamp? If I hadn't read that description here, I'd never have guessed anything about what you say is his preferred sexual gratification, as it's not apparent in other tweets