UR13-Bait & Switch/Fraudulent Practices
End Users: This extension developer promotes their extensions in a way that is incompatible with the JED Guidelines and/or the GPL License. We recommend you review the actual extension you purchased or downloaded to ensure your rights are protected. Often, when this error is displayed, the listing owner has intentionally provided “promotional information” for a version of the extension that is not compliant with the JED Terms of Service. This is considered a “Bait and Switch”. Additionally, the JED listing may be for an approved version, but the developer attempts to mislead the end-users into downloading/purchasing an encrypted or non-compliant version, or attempts to charge for a non-commercial version.
So don’t buy any add-ons if you don’t to.