Thank you proving that no, you were indeed not around back then.
Yes, Donald Cerrone was #5 as of the Feb 8 2016 rankings, which btw is a whole month before the Diaz/Conor fight we're even discussing so you've got the wrong rankings from the start. He'd also as your wayback capture shows just slid down the rankings from #4 to #5 for some reason. Had you been around at the time you would know that that was because he'd moved up to WW and so was being ranked less at LW now that he'd left LW.
He successfully debuts at WW 2 weeks later and drops even further from LW because of it, thus making Diaz #5.
Latest UFC rankings update following UFC Fight Night 83: "Cowboy vs Cowboy" mixed martial arts (MMA) event, which took place last Sunday night (Feb. 22. 2016) inside CONSOL Energy Center in Pittsburgh, Pennsylvania.
www.mmamania.com
But please tell me more about your conspiracy theories to make Diaz a top 5 LW before fighting Conor by having Cerrone move up a division months in advance.