Personally, I prefer Obsidian gets more funds&pledges than the number of likes on FB. For them to develop every additional level requires more resources. More resources = more $$$.

I know it's hip to hate on facebook, but it is a great tool for spreading awareness of things online. There's a reason why oppressive regimes block access to it; once something takes off there is no way of stopping it. Even if 99.9% of what occurs on FB is mindless drivel, the sheer size of the network is greater than all of the forums on a particular subject combined.

Especially because of the limited budget, pretty much all of the publicity for PE has to come from social media. Let's embrace that and use it to benefit PE.