I think that depends on your goal for the project. The articles are good - concise and well-written, but they're clearly starting points for people that want to make a change. Seems like you just about have a complete one-stop primer for people who have hit a low point. Solid product, and a huge swath of the internet is a receptive market. This seems like phase 1 of the project, since this is doable solo. Finish or delete any blank pages, and make sure wiki advertises this is more than a guide, its an evolving communal creation that's driven by each individuals unique expertise and experience. What you need is an active community to start collaborating on more in-depth sub-guides on the wiki, otherwise you'll need to dump hundreds of hours into research.

The highest impact move is pick ruqqus, saidit, or reddit as the keystone of your foundation. Then start evangelizing. 4chan and reddit both love self-improvement, full of lost people that don't know how to move forward. None of these three websites have an organic path to a front page. Until you reach a large enough user base to grow by word of mouth or social media, you have to find users by hand. /pol/, /r9k/, and /fit/ are infested with people perpetually bitching about their lives and the fact that 4chan's mods and Jannies routinely ban self improvement threads. High demand, artificially low supply = opportunity. Reddit, I'm sure you know some receptive subs, where miserably people have been fed a diet of motivational quotes and empty platitudes as the solution to their problems. I think saidit is a good host, but users here are mostly political refugees from reddit, they use it as an intellectual asylum rather than for lifestyle or self improvement.