Going to m.drownedinsound.com just redirects to the full site both on my phone and on my desktop.
we're currently rebuilding the entire site from the bottom up, and mobile is very much part of the reason for doing this.
i think http://m.drownedinsound.com/community only works from mobiles.
it's on the to do list, alongside taking more than 3mins to build a mobile version of the site.
whole site is being rebuilt at the moment, it'll happen, promise! just not sure how soon.