It reminded me of Quora's Data Science wiki which includes a really good step-by-step guide to Data Science.
Having such a nice wiki helps us re-direct the
getting started posts to the wiki, so that the users can self-help themselves to a certain extent which helps reduce low quality content as well as helping the new users/learners (Win-Win!).
But, compiling a wiki of that quality requires good and active community participation. So, do chip in with ideas and posts.
Hint: We can try to get an idea of the wiki from the(and not just limited to,) beginner tag on the main site.
After we have a consensus of the wiki, the mods can go ahead and create it (as underlined here).
Let's have the discussions related to the wiki construction in the DataScience chat room.