Is there a policy to guide plugin developers in their way of asking for donatations? If so I'd like to see it and send it to Dennis Hoppe. His plugins are quite good but his approach to self promotion and requests for donations is rude and intrusive. Even after donating when I upgrade any of his plugins a donations screen that occupies nearly half of the dashboard page appears. On another of his plugins his promotion of a pro version of a plugin is placed into the plugins page and overwrites some of the details of adjacent plugins.
He says he supports open source but his understanding of this is just plain wrong. He says he has done his job now it is his plugin user's responsibility to donate and he, in essence, dominates the dashboard until you do and then keeps on doing so after you have.
Before I deal with him directly I should like to know if there is a guide to acceptable behaviour embraced by developers.