Viewing abuse filter ٦: new L2

l2_heading := "(?i)(?(DEFINE) (?<comment>!--\X*?(?>-->|\z)) (?<tag>(?>" + "(?&comment)|" + "\/?(?>includeonly|noinclude|onlyinclude)(?>\/?>|\s[^>]*>)|" + "(?<tagname>(?>categorytree|ce|charinsert|chem|dynamicpagelist|gallery|graph|hiero|imagemap|indicator|inputbox|langconvert|mapframe|maplink|math|nowiki|phonos|poem|pre|ref|references|score|section|source|syntaxhighlight|talkpage|templatedata|templatestyles|thread|timeline))(?>\/?>|\s[^>]*>)(?(?<!\/>)\X*?<\/\k<tagname>\s*>)" + ")) (?<title>(?>[^\n<=]+|=|<+(?&tag)?)+?) (?<post>(?>[ \t]+|<(?&comment))*+(?=\n|\z)) )" + "[^<=]++(*SKIP)(*F)|" + "<++(?&tag)?+(*SKIP)(*F)|" + "(?<=\n|\A)==(?!=(?&title)===(?&post))(?&title)==(?&post)"; !(user_groups rlike "bot|sysop|autopatrol") & equals_to_any(page_namespace, 0, 118) & old_size != 0 & rcount(l2_heading, new_pst) > rcount(l2_heading, old_wikitext)