Your Privacy Is Important
You Can Be Comfortable
1) At the time of this writing, I don't need your credit card info for any reason.
If I start selling some super-duper tools for how to learn Japanese later on, fine...then I will make sure your information is totally safe. Right now, I don't even need your info at all.
2) I do NOT let any junk mailers get their mitts on your name and e-mail. The only way I'd even see those is if you send me a question or have a suggestion, and I don't want any more to do with spammers than you do.
3) If you share a gem of knowledge with me and we agree that I should put it up on my site, I will only attribute it to your name if you ask me to.
4) Most of all, you are a fellow Japanese enthusiast. I wouldn't do anything to screw you over, period.