Not bad, but when there are sites out there like Github, BitBucket, or even Code Academy, it might be difficult to attract users to your service. Personally, I wouldn't have built a site like that, but since you already have that doesn't really help you.
The design is nice, modern, with only a few minor issues (which may just be browser issues - the search icon is bigger than the search box for example). The homepage is a bit campy and has some questionable grammar in the body copy, but it isn't overly distracting. The focal points outside of the user profiles seems to be limited to the forums, which is (I think) a problem. On dA, for example, we have groups, channels, chat, etc, etc, all these other things that we can do if we get bored of the forums. There's the browse page, but the information presented there is almost like a Twitter feed rather than a showcase for your users. The user profile home seems is a bit confusing too, it's like a friends feed type of thing? Not sure if that makes sense to me, but ok.
It's a good start, but when you consider your competition you need to come out of the gate with guns blazing. For example, huge companies use Github. What kind of things could you do for large enterprises like Adobe? Is enterprise a target? If not, what is your monetization plan? You can only get so far with no money. Overall it seems like a well built site that lacks a clear vision for the future. I think you should sit down with your team, or random people on Skype, and bang out something that resembles a business plan. Potential is good, but it doesn't pay the bills. I worked with a guy who has probably the most insane ideas I've ever heard of for his startup but because he never had a concrete plan he was having trouble keeping people interested in the project. His startup is going well now, but it was basically nothing but ideas on paper and a whiteboard scribbled down in one 8 hour meeting for about a year, and this is a really good idea from people who have launched startups before (so theoretically they know what they're doing).
I'd say you should definitely go ahead and link individual profile pages. It doesn't have to look anything like other sites either This is my own site members page, probably very different from what you'll want and needs some work yet, but anyway, [link]