Remember the dizzying heights GameStop reached thanks to an army of Reddit traders led by the mysterious Keith Gill? Well, Keith, also known as Roaring Kitty, has resurfaced, hinting at another big move in GameStop shares. This time around, he’s flashed a screenshot that could be showing a hefty stash of GameStop shares and some juicy call options. The internet and the stock’s price are buzzing —GameStop shares leapt by 19% in just one evening on Robinhood’s round-the-clock trading platform. But are investments driven by memes and online hype a smart move? To help you figure that out, we’ve co…