Masked and sometimes caped crusaders occupy mythic positions in society. The Scarlet Pimpernel, Batman – in fact any super-hero you care to think of – use anonymity to progress good against entrenched, begrudging power cliques. Onto the stage – the digital stage and this time in real-life, strides blogger and prolific Tweeter – Grog’s Gamut. He is a Twitter sub-culture phenomenon, blogging and tweeting anonymously and with undoubted journalism skill. The package is now in the open, his mask ripped off. The eagle …