Marketing used to be posting pictures and short videos on social media. Seriously go look at Notch's old posts on twitter and /v/. He wasn't a marketing genius he just shared progress and asked for feedback. Now that kind of content gets no engagement.
You need to consistently engage with social media, consistently post attention grabbing clips, and consistently hop on meme bandwagons. I'm not bitching about it I'm just saying its the reality, marketing is a lot harder than it used to be and you guys need to accept that marketing is a import thing to do, almost as important as making your game even.