"If you want to make different demands of users of your software than those of the GPL, BSD license, etc., you should not use one of those licenses." Licenses

"If you want to make different demands of users of your software than those of the GPL, BSD license, etc., you should not use one of those licenses." Licenses are legal instruments and the terms of free licenses give defined freedoms. The nag message for Apple users does not contradict the license under which Remind is published (GPL). The message, reflective of the author's "petulance" as you put it, is, legally speaking a feature of the software and it is subject to the same licensing terms. I think you are mixing up the license with a vague notion of the "spirit" of the license. These are two different things. You may still argue that the nag message goes against the "spirit" of a free license (while not against the terms), but the counter-argument made by the author is that this measure is justified in the face of Apple's restrictive behavior.