Throwing this out there: awesome developers could and probably should be able to make anything that coderwall could offer in terms of awesome profiles. IMO the best way to stand out is to build your own website with some open source stuff, put up your projects, and have a few links to online accounts that you put a lot of effort into making useful. By using coderwall, it looks like a developer would be only gaining access to people who are too lazy to look through their awesome website.
There is a Mark Twain quote that is escaping me that would really apply here. Something to do with crowds and what to do when everybody else is doing or thinking something.
EDIT: They have a very pretty website though. Kudos for that.