Old joke. Sorry.
The effect - sorry, the "user experience" - seemed oddly familiar, but it took a while before I could place it. It's like that episode of Torchwood when Toshiko has a pendant that lets her know what everyone around her is thinking; she puts it on while she's in a pub, and gets thrown back against the wall by the sheer force of people's deep, dark musings, all spilling out like a white noise of frustration, lust and banality.
Except that, after using twitter, you don't automatically get to have a frenzied bout of lesbian rudeness with someone who used to be in EastEnders.
Well, I didn't.