If you look at some of the entries on the meta blacklist ([[m:title blacklist]]), you'll see stuff like:

(?i:[GĜĞĠĢƓǤǦǴḠ69&Γ]((\W|\W.*\W)?[RŔŖŘȐȒṘṚṜṞ®Ρ₧ÞþΡρРрƤṔṖǷ](\W|\W.*\W)?)+([ǼAÀÁÂÃÄÅĀĂĄǍǞǠǺȀȂȦȺḀẠẢẤẦẨẪẬẮẰẲẴẶÆǢ4@?Α](\W|\W.*\W)?)+([VƲṼṾWŴẀẂẄẆẈ₩UÙÚÛÜŨŪŬŮŰŲǓǕǗǙǛΫΥΫΎ](\W|\W.*\W)?)+[PƤṔṖǷ₧ÞþΡρРр]) <newaccountonly>

These could easily be simplified (and improved!) if AntiSpoof normalization was applied.

Version: unspecified
Severity: enhancement