I would make it illegal to have anonymous content, in my country. Otherwise you have trolls and bots everywhere.
I'd rather have the freedom to discuss any issue i want without losing friends and my job going PC and accusing me of being a whatever-phobe.
And anyway, wouldn't it be better for advertisers to know your audience is 100% real ?
Who cares about them. All they want is to steal your private data to sell u crap.