Stop it with all the random 'National Day' hashtags already

I noticed something a bit strange as I was scrolling through my Twitter feed last weekend: I was being bombarded with unicorns. 

#BelieveinYOUnicorns was a top trending topic, and, after poking around, I found out I was late to the party to celebrate National Unicorn Day. 

I wasn't aware of April 9's sparkly significance — Unicorn Day wasn't marked on Google, or even on my wall calendar. I only found out via the hashtag, which was undoubtedly how all the revelers now sharing horn-filtered selfies discovered their new favorite day a minute before their post. Read more...