Hmm, I did discover that the ignore words weren't being properly ignored. Thanks for commenting on this. It appears that I was looking for them in the wrong place (on the root of the c drive). They actually existed there on my machine, but of course the installer doesn't put them there. The most recent release should have this fixed (as in the ignore lists are looked for in the location that the .exe is installed too).
I only recently noticed your comment. If you want to make comments so that I can actually see them you should report a bug on the sourceforge website at:
http://sourceforge.net/projects/textstats
This way I will actually get an email that someone has reported a problem.