It’s why I suggest Global Ignore List 
I used BadBoy from WoD till last year and I always suggested it to people. If you search the forums for BadBoy and filter it to just show me saying it you’ll see I’ve suggested it over 50 times 
But now I suggest Global Ignore List because it gives you a greater degree of control in how your messages are filtered.
I put a filter I made for someone up here
([contains=wts] and [contains=m+] or [contains=ksm] or [contains=aotc] or
[contains=mythic+]) or ([contains=huokan] or [contains=gold\ only])
Which basically just says if a message in chat
contains “wts” and (m+ or ksm or aotc or mythic+ )
OR
contains huokan or gold only
then block it. I guess the Huokan one isn’t really needed anymore but I feel like GIL allows players to create much more complex filters to deal with scumbags people trying to circumvent filter addons.
Don’t filter guild names people! Filter the message topic 