Why do some people use apostrophies in variable names?

[Robert Edis]

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I've seen a number of people use apostrophies in field names with PowerHouse.  WHY????
 
They confuse the heck out of me when trying to visually parse code as they can be mistaken for the beginning or ending of the string litteral.
 
What's wrong with using under[score|bar]s?  Much more readable.
 
Blue

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<DIV>I've seen a number of people use apostrophies in field names with PowerHouse.&nbsp; WHY????</DIV>
<DIV>&nbsp;</DIV>
<DIV>They confuse the heck out of me when trying to visually parse code as they can be mistaken for the beginning or ending of the string litteral.</DIV>
<DIV>&nbsp;</DIV>
<DIV>What's wrong with using under[score|bar]s?&nbsp; Much more readable.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Blue</DIV>
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