Let's say I want to perform a Mavericks clean install like described in this tutorial. But what I also want to do is to keep all my older apps (especially ones not installed from the AppStore and all their data). I have OS X 10.9 developer preview. Is it possible to do a Time Machine backup, then perform clean install and then restore the data?
What would be the outcome of such operation and wouldn't it level the effects of the clean install (e.g. transferring some unnecessary system data) while restoring from the backup?