After adding this from Add Widget, the RSS Feed button is not ghosted. This also creates a problem if Widget Manager is used. The expected behavior is that if RSS Feed Widget has been added to the profile page the button should be ghosted. Please see picture

@dranii That is how it is supposed to work. It lets users add multiple RSS feeds to their profiles.

Just some info about compatibility of the plugin: version 0.5 works fine also on Elgg 1.10 - 1.12 and on Elgg 2.0.