Edit filter configuration

Based on LTA filter 1220. The LTA learned to avoid doing this, but the filter is still catching lots of drive-by vandalism. Making into a public filter. 1220 was already set to disallow, and this one is a bit more narrowly targeted. --Suffusion of Yellow 22:55 3 Dec 2022

Rename, because the description is confusing people. This seems like mostly low-effort vandalism anyway, so it's unlikely they'll read the description. --Suffusion of Yellow 01:58 28 Jan 2023

!("confirmed" in user_groups) &

(

     sus := "[\w\s]{500}";

     added_lines rlike sus &

     !(removed_lines rlike sus) &

     !(added_links rlike sus) &

     !(page_prefixedtitle irlike ("sandbox|^Draft:|^User(?: talk)?:" + rescape(user_name) + "(?:/|$)")) &

     !(added_lines irlike "poem|lyric")     

)