TS9523, BanDai are all ADULTS. They are probably thinking that the hacking is just child's play, since they have ways of knowing very well you're - well - whatever age is on your profile now, I guess it's 13.
Because they are adults, swearing isn't really a very serious subject to them, and neither is safety. All that matters to them is money. They only even care about hacking because it gives a bad reputation to their site and doesn't make people think that logged in good characters give good CD's.
Okay, I admit some people might not undertstnad that, so I'll just say: If someone buys a Tama, then looks at a growth chart, they'll see that the cuter and more attractive characters need better care. In the process of taking Perfect Care, they get addicted and want to start collecting Tamas - buying new ones which gives BanDai money.
Meanwhile, people are showing off all their Perfect Care characters on TamaTown. If younger kids see that these great characters (Lovelitchi, Dazzilitchi, Mametchi, Kuromametchi, Chantotchi, Dreamitchi etc.) have great ranked CD's and great rooms with lots of Easter eggs (doesn't matter what the Easter eggs are saying), then they might come up with some crazy theories about good characters bringing good rooms, contest results and CD's, earning BanDai even more money.
Do you see now why BanDai gave the response they gave? I hope I helped.