Because it's not about "manners". It's about perceived value, and people that go around giving away things for free do not have the power to determine whether or not what they've given away for free is of any value. I could give you a handful of warm shit, then bitch about how ungrateful you are because you didn't express adequate appreciation for it.
That is what you are doing here, right in this thread, post after post after post, still failing to get the point. Failing to appreciate most of what I've said here, and by "appreciate" I do not mean "feel a sense of gratitude", I mean "to adequately understand".
How can I expect you to be grateful for something that you are incapable of even understanding? It's ridiculous and would be rather stupid of me to show up at a kindergarten and start telling them all about Ohm's Law, then start whining and carrying on about how they don't thank me enough. That's whats happening right here. You, in particular, have missed most of what I've said, and most others have as well. I suspect some get it, and either do not think it's substantive enough to thank (or Rep+) me for it, or the assume (correctly) that thanks and/or rep+ is valueless and an empty and meaningless expression. I post what I post with a certain measure of hope that it does some good, and with no expectations at all. If I expected to get something in return, I would sell my thoughts for money, as I referenced earlier in the thread. Problem with THAT is, you find out how valueable you really are (or are not) when you put yourself up for sale. Meaning, 99.9% of what you read on this (and any other) forum is pure shit. Yet look at the sheer volume of "Thanks" there are. All these "Thanks" for all this meaningless drivel sort of reduces the value of a "Thanks", don't you think? And yet, here you are, bemoaning the backsliding into barbarism of Western Civilization because someone doesn't appreciate a post about using 16 pt font instead of 12, as it has more "visual impact" (and other smarmy, market verbage, all of which is completely meaningless).
Part of what I'm saying here is that it's a big-wide universe; bigger than you imagine, and what you are attempting to do is reduce that universe down to a fundamental level of polite vs. impolite, with polite being "good" and impolite being "bad", and of course with you as the arbitor of what is good or bad.
And I'm telling you that you are wrong; the universe is bigger than that, and also that you are wrong and that you aren't qualified to determine what is good and what is bad, and finally what is REALLY going on (I think) is that you have dumbed down the "known universe" in order to help assuage your feelings of inadequacy and inability to control certain things in your real life, and are attempting to demonstrate adequacy here in order to compensate.
See all that, up there ^^^^ ? That's REAL substance, and not juvenile meanderings of no use to anyone. Note the absence of me begging for thanks and then whining because I don't get them. Men don't behave that way. Children do. My post, my thoughts stand on their own, or they do not. People that read them understand them, or they do not. They find value in them, or they do not. Nothing I say or do afterwards is going to change any of that. I have exactly one chance to influence those that read my words, and after that all I can do is undermine their impact and water-down their relevance. I set these words loose on an infinite ocean and what happens afterwards is completely out of my control.