Having used all of the subsequent iterations of OS X, now I will be reverting to my Time Machine copy of 10.9 because really, the usability of it has gone downh

Having used all of the subsequent iterations of OS X, now I will be reverting to my Time Machine copy of 10.9 because really, the usability of it has gone downhill from that point on. Or even 10.8, I'm not yet sure. Who cares if it's secure but sucks so much that I'm not using it anymore?