If someone pays for training, MCC, TR, Line training, Hours build-up, etc... might have already a funding problem... so from where will then the $$$ come from to pay the 7000hrs, upgrade, 744 experience etc?
Supposed, this is a kind of hobby, you still would need the time to care about a "real" job, and I dont think P2F rosters will be that friendly!
You must be dreaming of times of slavery, when you could work for free, even got housing and food and clothes...
I even thought those adds might be just sponsered by a company to show their pilots they should stop complaining about T&C, but it looks like its for real.