Hides scripts for popular browser games and social networks as well as scripts that use "foreign" characters in descriptions, when browsing or searching scripts. i.e. it filters any/all of these 4 categories:
Games: scripts for browser games like Kingdoms of Camelot, Mafia Wars and Ikariam
Social Networks: scripts for general purpose social networking sites like Facebook, studiVZ and VKontakte
Non-ASCII: scripts that use non-English characters in description (accents, umlauts, cyrillic letters, ...)
Clutter: obvious spam, titles like "asdasdasd", description = title, title < 6 characters, "just a test", scripts for themes/dark/night mode (because they are, in effect, userstyles).