Seeing multi-account FCs own so many houses makes me wonder if this kind of things isn't an issue on JP servers. It also makes me wonder how much of the other languages' forum feedback gets forward to the devs, as this kind of activity has been reported a few times now. :B
I mean, the dev team didn't take care of RTM-tell bots until Yoshi-P was personally spammed while doing an NA/EU server tour at the end of HW even though the EN forums had plenty of threads about it. >x>