Hello, if you go to the finder and to go downloads or whatever folder the name (title) expands all the way EVERY TIME. WHY. WHY WHY WHY!H!HH!H!H!!
He means the "Name" column. Yeah, this is seriously annoying. Mind you, this is just DP2, meant to developer Xcode apps on Yosemite. If you are not happy with this behaviour, please report the bug to Apple like any other and chances are, it won't do this in DP3.
I don't have this issue at all. The Name column looks no different than it did in Mavericks on my machines. Do you have some sort of app/extension that modifies the Finder?