Well, behaviour can’t change your genes, but it can change the way in which they are expressed. Epigenetics is a thing, and describes how some learned behaviours seem to be heritable. That could even include some effect on domestication.
It seems that Honeybadger’s error was to say that it causes your genes to change. But directionally he’s right that some learned behaviours appear to be passed on to new generations. The level of snark aimed at him over that small error is not called for, but an example of how the people disliked on this board get nitpicked and harassed over the smallest errors.
If you want to fight ignorance, patiently explaining the difference between RNA and DNA, and gene expression vs genetic change might work a lot better than, “nyuk nyuk, you are stupid!”