The generalist badge (which, apparently, is now awarded, contrary to what other questions here on meta suggested) has a very unclear description: "Provided non-wiki answers of 15 total score in 20 of top 40 tags"
What are the "top 40 tags"? According to what ranking? If an answer has more than one tag, does it count towards 20? (i.e., could the badge theoretically be reached with only 4 answers?)
Edit: also, does the "15 total score" apply to each of the 20 tags, or to the total sum? I suspect the latter, otherwise it seems very easy.