Even if the price fluctuates, the amount of bitcoin in the account should stay the same, as long as it wasn't sent to someone else, only the value would change.
What I saw seemed to be referencing the dollar values in the accounts, not the BTC directly. Everything I saw was in a foreign language, so I could be totally wrong.
People who aren't aware of the distinction, might be confused why they don't have as many dollars as they used to.