We'd like to develop a new WordPress plugin. Is it forbidden to insert a small copyright text below the plugin with a link to the website of the plugin?
Regarding: http://wordpress.org/extend/plugins/about/ (point 4 in second alinea) it is forbidden.
But regarding http://wordpress.org/extend/plugins/about/guidelines/ (point 7) it is not forbidden: "Putting links back to your own site or to your social-network of choice is fine".
What to do?