EDIT: @mindbleach@sh.itjust.works shared something that might help to circumvent this shit:
Contained in these parentheses is a zero-width joiner: ()
Basically, add those to whatever you feel that might be filtered out, then remove the parentheses. The content inside the parentheses is invisible, but it screws with regex rules.
_ | | | | ___ _ __ ___ _ __ ___ _ _ | | / _ \ '_ ` _ \| '_ ` _ \| | | | | |___| __/ | | | | | | | | | | |_| | |______\___|_| |_| |_|_| |_| |_|\__, | __/ | |___/