This plugin creates a user roles table in the database with the specific intention of speeding up read queries based on user role.
Currently to obtain a list of users based on some role, bbPress must do a query against the usermeta table using a LIKE query on an un-indexed column. Queries like this bring any database server to it's knees when there are millions of users.
Primarily, there is a filter added to the admin function bbgetuseridsby_role(). So any plugin using this function will gain an instant speed-up by using this plugin as well.
If another plugin wants to check for the existence of this plugin, then it can detect the BBURTINSTALLED and BBURTACTIVE constants. This detection should be made by hooking into the 'bbpluginsloaded' action and querying for those constants.
This plugin requires modifications made to the bbPress codebase between 1.0-alpha-4 and 1.0-alpha-5, so the first supported release is 1.0-alpha-5.
