Well, we had a need for this tool ourselves through all the UX / usability research we were doing for all our awesome clients, so we made it. And even though it was made by a small company that - for better or for worse - are somewhat remotely interested in feeding their starving families, we didn't think the basics of this should hinder it being useful. Odd coming from usability folks.
Some things in life should be free. I mean, if you want to pay us, please do, but in some way the free tool for all pays itself by you, our gentle and humble users, maybe hiring the guys at ThinkPlot
for something? That would be grand.