YouTuber Markiplier says he'd vote against GoPro's merger, though he stands to get a $15 million check from it

Rodin Eckenroth/Getty Images; Tyler Le/BI YouTube creator Markiplier became the center of a meme-stock bonanza around camera company GoPro. He bought an 8.5% stake in GoPro and is now poised to get a cash payment from its planned merger. Markiplier said he finds the proposed deal disappointing and…