I didn't downvote, but it wasn't a productive comment -- it was just snarky and condescending.
I don't think this is front-page worthy of HN, sure, but anytime someone at Google/Dropbox/Apple does so much as pass gas, people around here get excited.
Helping Dropbox grow is arguably the single greatest achievement of YC to date. I think in that light it makes sense that news about Dropbox gets on the front page of news.ycombinator.com.
I would "argue" that fact, given the chance.
I don't really care about it, but your comment was worthless and deserved to be downvoted. If you don't care about a story, ignore it. If you think it's wildly inappropriate, flag it. If you feel compelled to share your disdain with others, I recommend Twitter for that.