In 1997, he and other members of YouthSpeak projected a laser beam onto Big Ben, demanding "16 for everyone". It was a protest at the then unequal age of consent for gay men. He has since been associated with grass routes direct action group OutRage! In 1999 he co-founded the Queer Youth Network.
He writes a regular column in London's QX magazine and has been a contributor to The Pink Paper, OutNorthWest and The Independent. His first book "Queerest of Conspiracies" was published in 2005 which is described as a "fresh look at the state of the gay nation" where he categorised the gay community into both 'Good Gay and Bad Gay'. David has been outspoken in the media and petitioned the government on the issue of civil partnerships and has argued that "they create a two-tier system of inequality".