Is nierle.com Safe?

I used to be a satisfied Nierle Customer. Unfortunately I found that Nierle sells my private information which I consider a massive breach in trust. Background: If you have an own domain it is very easy to create new email addresses. So for every company/site I create an own email address like 'nierle@example.com'. With that it is easy afterwards to filter any spam I receive (just block that particular address). A side effect is, that I get a quite clear picture about who is selling my data. Of course many companies sell email addresses, and as soon as you publish yours you will notice a huge increase of spam. In Nierle's case however, the spammers use my first and last name in the spam which means that Nierle not only sells the email address but at least first and last name. I assume the post address is sold also sold, hopefully they keep the credit card data secret... If you order with Nierle, I strongly recommend using a trashmail address and choose paypal as payment option (to prevent misuse of your credit card data), but better find another shop. Even if sometimes hard to find, there are serious online shops who value their customer (and their data).