Yep I have this working for WP themes and plugins, and have successfully implemented it on 2 of my envato items (with the envato api as well! so automatic updates are only offered if they enter their licence code). It has pushed updates out for 82 different installs for my wp plugin it’s exciting seeing that number increase.
I’m very strapped for time, but releasing this to other authors is still high on my list
Authors have had a lot of success providing “extra features” for those who enter their licence purchase codes. eg: automatic updates on wordpress themes/plugins, or the ability to easily unlock extra features, or download additional plugins from your own site. There is no public code available to do this at the moment, everyone does it differently. Might change in the future though.
Also heavily advertising the current version number in all graphics / item descriptions / the item itself will discourage people using older versions in favour of the newer updated version they can purchase.
But yes, impossible to do complete protection. I hardly bother any more. Protection is good fun to implement though lots of challenges to overcome.
I think this was discussed quite a bit when the Elite price adjustment tool was released.
There were no plans to allow authors to have control on reducing their own prices. Only increasing.
From memory the main argument was that top authors with lots of files could lower all their prices and easily undercut new authors. Wouldn’t be fare on new authors.
But these discussions are always good so keep throwing your ideas around.