Sorry for all the posts (though I have no idea if anyone is actually seeing these!), but I guess it comes from being an ex-software designer trying to relearn his Japanese!
On the Flashcards, occasionally there is a problem. It would be great to have a button on the flash card to report a problem on that card.
For example, on the card for 入社, the audio that plays is この可愛いセーターを着てみませんか。It's kind of confusing!
I don't feel as though the technical support page would really be the right place to report flash card problems, because it's kind of hard to get to, and you'd also probably be inundated with posts. A simple report button would probably be enough on the card itself.