Didn't your high-priced education teach you the difference between college and a job?
Forget the labels. Most blather on about "PFT" and don't have a clue what they're talking about. Set the label aside.
Your college encouraged you to do your training at the school, lied to you, intimidated you, blah, blah, blah. What has this to do with the price of tea in china?
Your employer is making a profit, and requires employees who will function for a wage in order to make that profit. The employer has hired one pilot, then convinced another to pay for the opportunity to work there. This is not "PFT" (pay for training), this is pay-for-work. While encouraging or requiring pilots to pay for their training does meet with some distain, requiring pilots to pay for their jobs, work for free, and even house themselves at the same time is far worse.
You've rabbited on about a legal need for the SIC...show it.
You've rabbited on about mentoring. Is this the case? You've prostituted out another pilot, used and abused him or her, then kicked them to the curb when the money runs out...and feel proud that you've "mentored" them. In fact, the pilot has been willingly raped, being too young, too inexperienced, and too stupid to know otherwise, and you're proud to have helped...and the company things the victim should be grateful for the opportunity. Quite a racket there.
No...not "PFT." That's really a term that the ignorant get excited about and toss around. This is worse, and it lowers the bar across the board. It lowers the bar for employers, who can get a ready supply of inexperienced pilots to come pay to work for them, and it lowers the bar for pilots who find that employers don't pay a fair wage when they can get cheap, even paying, labor.
If you're in a single pilot aircraft (lacking the authority or requirement for a second pilot) and charging others to ride along, and don't have the legal basis for those others to even log the time, let alone be a required crewmember, you're running a scam program and perpetuating a falsehood. It's the big lie, and you're charging others for the privilege of living the big lie. How wonderful that you're proud to be a part of the big lie, isn't it?
Seems you're not only an enemy to the pilot body, but to the industry at large, as well as a moral criminal and an ethical rapist. Your pride in your work speaks volumes about your character and your place in this world. By all means. Keep talking. You're digging yourself deeper and deeper. If you keep up, eventually you'll bury yourself.