It is true here too. Automatic removal of unreferenced libraries may be dangerous in some cases but to do a manual removal you should KNOW which library is unreferenced and maintain the libraries status. With red pill mode it was possible for inexperienced user because the only skills required - knowing something about dependencies. You may not know about Linux (debian flavor) repository kitchen.

Unfortunately it was removed in attempt to guard some stupid people which doesn't understand dependencies. And it looks like nothing is in exchange beyond debian-style 'apt-get' or 'dpkg' which are more dangerous for inexperienced user - this commands may work in traditional Unix style "you ask - I do, no guards".

But that stupid people buys iPhone... and now Nexus One exists on market.