OK, I've narrowed it down to just Lynx.
Notice it shows up in that sentence at the end.
BUT if you use L--- in a sentence and it is
not at the
end of the sentence then it won't be accepted.
Try it. All you have to do is write something very simple like 'Lynx' is a cat but don't use the quotes around the word.
Even just a two word sentence like: L--- is. Forbidden.
And lowercase l--- is. Also Forbidden.
Even L--- . (leave a space before the .) In fact as long as there is a space after L--- anything can be put there, numbers, letters or even NOTHING, just a space.
Amazing...
Why?