Stack Overflow has been making available ALL public data on its site as a dump every month. Though, it looked obvious now (after Stack Overflow did this) to release community contributed information back to the community, it is the first of its kind and the only site as far as I know.
The community has selflessly provided all this content in the spirit of sharing and helping each other. In that very same spirit, we are happy to return the favor by providing a database dump of public data.
Any body can play with that data, like do some profiling on usage patterns of the site or something. I really can’t think of any better use at this point. Or, upload on an intranet server so that all employees can use the knowledge shared on this site (Some Indian IT companies don’t allow employees to access internet at office).