Subtle Humor

In the last week, I tried a bit of humor – just to see if anyone noticed (or cared).
First I posted:
What Now, Then? January 11, 2013 by kmabarrett I am not now That which I have been    ―   Lord George Gordon Byron From: “Childe Harold’s Pilgrimage“ [No, I haven’t read the whole poem…  But I liked this one line.    —    KMAB]
A few days later, I posted:
A Toe In The River January 15, 2013 by kmabarrett I am not now That which I have been.    -–    Lord Byron From: “Childe Harold“ [As stated by Heraclitus of Ephesus:  “You can never step into the same river; for new waters are always flowing on to you.”  To which I would add, and you are always at least slightly older.  But, more importantly, are you greater (wise, kind, gentle) or lesser (bitter, cruel, hard)?    —    KMAB]
The version posted earlier received five “likes”.  The second version received three “likes”.  The three likes were from completely different people.
Now, I don’t know if the first five recognized the duplication and chose not to comment (or to “like” again), or simply didn’t notice (or didn’t care).
In any case, this was not a duplication error.  It was (for me) a subtle play on both the Byron quote and my second comment (including the quote by Heraclitus) that we are never the same person, even when we read the same thing a few days later.
I’ve been told humor is not funny if you have to explain the joke…  How come I’m still smiling?
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