I think people do that to anon handles too because once their views get known, it’s the same. People like Catturd on Twitter, people will call him a fascist or whatever. 

For smaller anon accounts you can look at their posting history or bio too. 

I think basically people just want to hate on someone or something will attack the poster, and having an anon handle won’t change that much. 

As for the privacy argument, why do you need privacy for your social media post? I mean you are broadcasting it to the world. You need privacy for your texts and emails, but social media is the *public* square. 

To me, the desire for privacy in the public square — unless you’re breaking top secret information — is just desire to hide. And it validates the views of those from whom you are hiding that you would want to do so.