I've replied to him on numerous posts on threads such as these within the past couple weeks, with the same exact recycled comments he keeps rehashing about how "hair transplants only last 2 years." It's literally the only thing he consistently comments, and intentionally seeks out posts like these which prove his theory; it's the epitome of confirmation bias.
Hair transplants have been conducted for a few decades now. If they only lasted 2 years as he says, they would not be seen as an even remotely viable option for people, and would instead be regarded as a widespread failure across the board, in every country.