First of all, thanks for releasing this package.
The main problem I have with this code is that it
distorts the text too much. While testing it, I often
had to try twice, sometimes three times, before
'guessing' the correct string. It shouldn't be so hard
and this is a turn-off to site visitors.
How about parameterising the degree of distortion in
the config? That way everyone can choose their own
level of distortion.