I did, yet you have also used them as one in the same (in the very post I was replying to, that is exactly what you did). I have also not engaged in any invective dialog.
You cannot expect everyone to connect all the same dots. They won't. You need to type out enough information so that they either won't have to, or will not have any options but the dots you intended. Not everyone has the same experience you do, nor the same priorities. This kind of mental divide needs to be on your mind. Do not take offense at others trying to clear up something that is muddled, to them or someone else.
In your 7th post, you mentioned Sandy. That's well and good, but still begs the question, "what did Sandy do that made unplugging your computer a good practice?" I mean, how are we to go from seeing entire neighborhoods destroyed, to thinking about protecting one wee little computer? Most of the nation, and probably most of the rest of the world, didn't see any of the more minor effects from the storm. We might have read on a ticker about this city or that county, being without power, but nothing more specific than that. Honestly, this is the first I've read about that kind of power failure occurring from it, frying things left and right.
You need to, in some way, include that context. Most people that turn off their PCs every day are old people trying to save power (while still using incandescent light bulbs

), thus the responses you got. Your particular practice is not common to the rest of the population, so needs explication.
Even being explained, don't expect everyone to have the same priorities. My loss, in that scenario, would either very light, or so great that I would be more worried about insurance policy details than about the health of a single computer. The risk is quite low, and mitigating it would involve adding
yet another small time-consuming practice to my day. I cannot say you are wrong to be do what you are doing, because I don't know what your losses would be like, nor what they were this last time. But, it is very much a matter of managing priorities, and calculating risks, both things we do every day, often effortlessly.