As a Wikipedia user I want to be able to perform advanced search in Wikipedia with various parameters such as subject area/category, exact wording, logical operators or/and/without for keywords, author, number of edits in the last month/year, number of visitors of the last month and lenghts of the article.
Further details:
Effort:
Needs to be further discussed with: WMF, German Community
This is part of the Top 20 wishes of the German community