No, CrazyDiamond7 does not mention YEC nor the Flood nor uses the YEC timeframe. But he is still making the same fundamental mistake that Henry Morris made and that YECs who use the "Bunny Blunder" still make: assuming a pure-birth population growth model. Because of that, comparisons between CrazyDiamond's opening message and the YEC "Bunny Blunder" are inevitable.
Pure-birth is the simplest population growth model and assumes that there is nothing that will limit the population; eg, that there is an unlimited amount of food and unlimited space. It is therefore the least accurate model to try to apply to actual populations in the wild.
A better model would be the logistics model in which the population size is limited by the environment's
carrying capacity, the maximum population size that it can support. Changes in human technology and society can change the carrying capacity, which is what we see as having happened. A population can be held at its limit indefinitely.
In addition, events such as famine and plagues can cause changes in a population's growth rate, even causing it to reverse itself. Pure birth does not take such events into account; neither does the logistics model.
The term "Bunny Blunder" refers to the exercise of applying Henry Morris' human population model to bunny rabbits, such that it can be shown that the current world population of rabbits had to have arisen from two bunnies 100 years ago. It has also been shown that applying Morris' model to certain dates in the ancient past has ridiculously small work forces available to have built the pyramids of Egypt (about 150 for the Great Pyramid, even fewer for the preceding ones built over the previous centuries), and that a world population of about 10, including women and children, had to rush madly between Crete and the Indus River Valley building and abandoning enough large cities, monuments, and major civil engineering structures to make it appear that there had been millions of people.
Morris' claims are examined and discussed in the article,
Creationists, Population Growth, Bunnies, and the Great Pyramid (by David H. Milne,
Creation/Evolution Journal Vol. 4, No. 4, Fall 1984, pp 1-5). I also researched several of Morris' developments of his model. He didn't know what he was talking about. As a hydraulic engineer, he could play with the math, but he was clueless about the right model to apply that math to.
Discussion of the "Bunny Blunder" in terms of the YEC claim would of course be off-topic. But I do not think that to be the case when it's regarding choosing the correct model(s) for human population growth.
Edited by dwise1, : added disclaimer