Do you guys think e.g. YouTube or redshit is profitable despite of what they say and without "profit" that's pumped in by investors or mother companies?
it's just a business,
They get market share by loosing profit then once they are establish enough so most people won't leave if they change things and they change things and start to make profit.
At least that's the plan.
Google's goal with YouTube was never profit. Had it been YT would end up on Google graveyard long time ago. They are looking for market dominance with video streaming which in turn provides a lot of useful data for mining. Ads are there to curb price of whole ordeal a bit.