first of all: thank you for making this plugin free and thank you for your ongoing support.
As to your points :
- the majority of sites who are installing plugins from the wordpress repository are on production environments
- adjusting plugins by wp developers breaks the update cycle and is usually not recommended. Also it defies the purpose of this plugin database if every plugin should be adjusted by wp developers before usage on a live site
- with the massive amount of development websites only surviving for a limited amount before going offline, adding functionality which applies to a certain URL working is deeply discouraged for developers. Imagine you switch jobs in 1 years time and won't have time and/or money to further support AWD. That would jeopardize your users. Also costs of traffic and backwards compatibility are higher on your side.
- as I see it right now, the RSS functionality of your plugin is not really crucial to its operations, and I would ask you to please disable it per default OR to make it an option with a clear warning of the consequences
As as side-note, or more of a personal request; I am actually a little bit worried over the intrusiveness of your plugin into all areas of wordpress, such as own administration item, own administration tab entry, etc.
I'm sure one of the motivation points for you is to have a prominent plugin, but the FB functionality being just a side-functionality of a WP site I would ask you kindly to take that into regard.
Looking forward to the new version.