[Casual] Anonymous 20-minute digital-download QA usability test (18+, created or sold 1–20 digital products in the past 12 months)

I am running an unpaid, anonymous, non-sales usability test comparing two ways to check a digital product before publication.

You may participate if you are 18 or older, created or sold 1–20 digital products in the past 12 months, and have handled ZIP, PDF, or spreadsheet files. Professional software QA staff, software engineers, anyone who has used the E02 Digital Download Preflight tool, and anyone who already knows this test's answer key are not eligible.

You will inspect one entirely fictional delivery ZIP. The task takes no more than 20 minutes. There is no reward, sale, price, solicitation, waitlist, or marketing follow-up. The form does not request your name, email, shop, revenue, account details, or real product files.

Participation is voluntary and you may stop at any time. Please do not send personal information or real customer/product content.

Survey link: https://docs.google.com/forms/d/e/1FAIpQLScU3SwlenRKX5G6wznxjxpJDNTse805eMAlXzRRxwGclw-CgQ/viewform

The test closes after 12 eligible completions or 14 days, whichever comes first.