Couldn't you have just left it at the advice you gave? Nope, uncle ben to the rescue with his remarks.
To be fair, I can understand why someone with a background in the hard sciences, particularly plant-related ones, would take issue with 90% of the stuff posted on pot forums. He's right about most of it being bullshit or half-cocked anecdotal accounts at best, and since most people who post on pot forums are stoned all the time, they can't remember the finer details sometimes which might account for some misunderstandings.
In that regard, he probably doesn't care much for me, because I have zero background in plant biology or any hard sciences (I sell real estate, I'm no horticulturalist, just a lifelong hobbyist) and literally everything I post on this forum as advice or guidance is based on my own personal experience. So with that said, I should have posted that "IN MY EXPERIENCE, you should always remove the large fans that block airflow and light to interior budsights -- that's necessary regardless of what you think about "defoliation" as it is typically discussed on forums like this." It should also be mentioned that I grow vertically and my requirements for my plants are different than what someone else may need, say, for example, someone like Uncle Ben who it appears grows larger plants to apical dominance under horizontal lighting.
In my experience, it is critical to open up as much airflow in the grow space as possible, and I do so at the expense of whatever benefit may be gained from not trimming large fans and allowing them to remain. I'll post a photo to illustrate what I mean; the plants below probably had 20-30 or more large fans each removed throughout flowering, and had I not done so, I would have had an absolute mess of budrot and underdeveloped budsites in that 4x4 tent.
In any case, again, understand the frustration to see misinformation spread and stoner science and red-eyed conjecture suck and really do muddy the waters...but you could probably approach it in a more effective and less abrasive way in the future. Take it easy.