I use this site as one of my tools for studying. I find that the best way for me to keep things fresh is by studying every day, but maybe using a different tool every so often. So for me, having a way to customize the way we study on this website helps keep things fresh. One way I wanted to suggest was having the ability to tag flashcards. For example, if I want to study food, I would like the ability to study flashcards that deal with food. Or if I want to study kitchen items. Animals. Whatever it may be, we could help you classify your flashcards for you if we could do tagging. Anki supports this feature, and I use it to do topical study and quick cramming when I need it.
Also, it would be nice if there was a way to toggle Kanji, as that is one of the hardest things about learning the language, and there is a period of time (lasting years!) where you need to have that turned on all the time.
I'm new here, and I love the website. Great study tool for me. Thank you.