Lead section 

I believe that the following sentence:

"When current is applied to the capacitor, electric charges of equal magnitude, but opposite polarity, build up on each plate."

is more accurate than this version:

"When charge is made to flow into the capacitor, electric charges of equal magnitude, but opposite polarity, build up on each plate."

You said in your edit summary that "charge flows, current is a flow", implying that current doesn't flow (verb).  You are correct, so it's a good thing the original version didn't claim that "current flows"!

Also, the phrase "charge is made to flow into the capacitor" isn't really accurate, as overall, charge neither leaves nor enters the capacitor.

Regards,