I am thinking about mining Filecoin too, still doing the research on the required hardware, however it seems nobody that is actively mining is posting on BTT.
I have an old HP Proliant server laying around the house from the time I was hosting websites, maybe I should try mining on it, just lacking this 128Gb of RAM mentioned in the article on their website 
Is anybody else here planning on building a physical rig or you are all looking thinking of a cloud mining?
Cheers