Question: You may find me fast:  

My answer is transparent  

to those restive few who went off  

Their egregious oversight  

Left to scan and screen

Hear my refrain  

bound to draw the story out

Hint #1

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> Please stop trying to edit the title. It's one of the clues.
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Hint #2

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>  As @Mea Culpa Nay pointed out, there is a contradiction. So many contradictions, in fact, that it's almost moronic.
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Hint #3

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>  My last clue is a Herring. Does that make me two-faced?
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Hint #4

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>  I am what I am, and I am what I am not.
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Answer: 
Let me put out this fine puzzle comprises of 

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>  auto-antonyms (contronyms) - words with opposite meanings. 
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You may find me fast 

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>  fast: fixed in place, moving quickly. 
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My answer is transparent 

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>  transparent: invisible, obvious. 
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to those restive few who went off 

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>  restive: restless, reluctant to move.  
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>  off: deactivated, activated as in an alarm. 
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Their egregious oversight 

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>  egregious: outrageously bad, outstanding.  
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>  oversight: watchful care, overlooking. 
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left to scan and screen 

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>  left: departed, remaining.  
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>  scan: examine closely, glance at.  
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>  screen: show, conceal. 
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Hear my refrain 

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>  refrain: desist, repeat. 
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bound to draw the story out 

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>  bound: restrained, a leap.  
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>  draw: close or open curtains.  
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>  out: visible (stars), invisible (light). 
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Title and hints: Original riddle 

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>  Original may mean an old origin or newly created, and a riddle has parallel opposite expressions. The hints allude to the contradictory nature of these words, and two-faced clues that these are also called Janus words.
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My guess is:

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>  Lightning and Thunder
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You may find me fast:

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>  I do find lightning fast. Lighting is just about the fastest thing around!
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My answer is transparent

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>  Thunder is a sound, therefore not visible.
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to those restive few who went off
Their egregious oversight
Left to scan and screen

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>  Thinking back to "Original Riddle" I thought of early humans trying to understand the natural world. Some would have gone to try to find the source of the Lightning and Thunder, looking and trying to understand.
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Hear my refrain
bound to draw the story out

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>  When lightning stops (refrains) you hear thunder. Maybe a bit of a stretch there, but it also is a bit like a song's chorus, or refrain, in that it repeats after each lightning bolt.
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