Wow, that is really discouraging.  Are there really so few people honest enough to pay for a plugin that its not even worth selling one?

It kind of makes me want to try to make it as hard as possible.

Does anyone have an opinion on activation keys?  That seems to be the most common approach in regular software.

What about the script validating itself against a web service everytime it runs?

For that matter, what about just implementing the code as a web service that requires the activation key  to access?

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