Things move slowly in academia. We first started working on this research project in the summer of 2011. Now, finally, almost exactly three years later, we have a publication out! Many thanks to the assistants and especially to the native speakers of Finnish who participated in the study — all 417 of them!
https://www.academia.edu/7659433/Kiitos_and_pliis_the_relationship_of_native_and_borrowed_politeness_markers_in_Finnish