Major Description
According to our mentors we can keep the Plugin Portal ( https://lists.apache.org/thread.html/752f1b027c6ec62ea29fc077079c89647ef323381280e0ca506542b3@%3Cdev.netbeans.apache.org%3E ) but we might need a disclaimer:
Providing a way to install non-Apache plugins at runtime is fine IMO, as long as there's no confusion regarding their provenance.
NetBeans should have a visible disclaimer that such plugins are not endorsed by Apache and installed at the user's own risk. I suppose there's a dialog for accepting the plugin's licences, that disclaimer could be there.
We already show 'Community Contributed Plugin' in Plugins | Available Plugins. Perhaps it would be simpler to add a disclaimer there?