[Lordzy]

I don't think this filterscript is going to work like how you've thought because the way you used "strfind" function is not correct. When strfind is called under a input text allowed dialog, it's necessary to find a part of string on the input text. The same applies under OnPlayerText too. You have mentioned that you couldn't test the script, so if you could test it by someone else, that might get you to know how the current one really works.

PS : If you coded this through your tablet, why is there too many unused callbacks?