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I think you might find it difficult to get feedback when you require registering to a mailing list to test your product.

Thanks for your feedback. Let me ask however, what would be more in line to your needs? A site ? Because we have a large set of this material and email seems efficient

Putting aside the fact that you want us to sign up for your spam list, the text on your signup form is barely legible over the eye-searing confetti background.

Much of the text does not show well with the background on the main page "Receive mindful SQL challenges to solve. Emails twice a week?" - and the next page, sign up page, a lot of the text is basically invisible.

I am interested in getting some sql problems to sort out, but not likely to sign up for a mailing list to get them

Maybe if you had a blog kind of thing showing some example of the problems, and some past answers and discussions of problems and solutions?

After a couple tutorials and a book I am eager to learn more and actually do some stuff, so the timing for this is right.

Thanks for your feedback.

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