The idea is to create a new plugin type directory in /admin/. Plugins would be similar to current environment check (XML, strings and some custom code).
spam overview plugin: it would go through all settings that allow ppl to spam (like force login for profiles, self registering) and display list of all potential problems with some detailed description and some links to solutions
security overview plugin: this would replicate the checks we have in admin/index.php; list all accounts with do anything, verify https cookie security, etc.
privacy reports: these would be probably country specific because each country or school type is regulated by different laws. There are two possible solutions - either create new plugin for each different type/country or store the report definition as XML in moodledata - the second solution would allow us to download the definitions for central server.