I definitely lost my respect and trust to WePay founders because of their seemingly support for unpaid internships. Their justification is that interns can gain

I definitely lost my respect and trust to WePay founders because of their seemingly support for unpaid internships. Their justification is that interns can gain learning experience though they're not paid. This is okay if none of the intern's work goes to production code. If the interns are doing real work that impacts the company's products, then it is not only illegal, but also unethical.