Bottom line: people who tip out of generosity and kindness, realizing that others are not as fortunate, esp. due to downfalls, should be congratulated.
However, at the same time, people who do practice extra tipping should not EXPECT anyone else to do the same, or should not look down on those who don't share the same level of kindness as they do.
If they do, there's a problem. Simple as that, no?
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When once you have experienced being a 1K, you will forever fly the friendly skies with your eyes set on 100% mileage bonus and SWUs, for there you have been, and there you will always long to return, every year!