Absolutely not but I still completely disagree with anyone ranking him in the top 3.
Stipe was old and way over the hill in this fight so this was a borderline exhibition bout but he himself got WAY overpraised for beating guys who were also past their primes during his run on top. If Werdum didn't run swinging at him with his chin out like a mongoloid on meth, I would be completely underwhelmed with Stipe's resume. That was his best performance BY FAR and it was much more the result of Werdum being an idiot (which he tends to be quite often) than it was Stipe being some world beater.
He was a decent, middle of the pack HW who was in the right place at the right time. Prime vs Prime, he'd struggle to stay in the HW top 10 IMHO