i can’t believe this needs explaining. but, um, just click the red pin. and it goes away. there. whew!
p.s. i’m not saying i’m a fan of the pins, but cut tumblr some slack, they’re experimenting with different monetizing efforts. which, after all, they *are* a business. and if the community won’t stand for it, then i’d be surprised if it stayed. so chillax, peeps.