Make it obvious that by default support for plugin and themes in the repository is not guaranteed

[mark-k]

Or even better, people should assume it doesn't exist.

This follows the discussion here ​http://tommcfarlin.com/upgrade-wordpress/

I know it is possible to add a text to that effect in the readme.txt file, but it is not the same, and you can't expect plugin authors to release new versions just to reflect the change in their available time.

Alternatively support policy should have a tab of its own on the plugin's page.

In addition, there should be a way to contact someone that will provide paid support for the plugin. By default it should be the plugin's author, but it might be a good idea for other people to be able to provide this kind of service as well.