Leon Cowle on Nostr: npub1wuw8j…tpjs5 Here on Masto at least, use a client like Ivory (and others) that ...

npub1wuw8j93m048f807xf5cu3dwx5v9xqt0mt3eknp5zv8wezquxaytq8tpjs5 (npub1wuw…pjs5) Here on Masto at least, use a client like Ivory (and others) that supports regex filtering and then filter:
(?i)\bx\b
Should catch most occurrences.