It has been popular. People were traveling out of country for joint replacements. Costs were less for travel, surgery, and recovery than what they would pay for it here. Covid put a damper on travel for a couple years, so not sure if it’s still as popular. I would consider it if/when I need knee replacements done. Considering what I’ve heard about the quality issues of joint replacements in the US, I don’t want one here.
Unfortunately it would get paid as much attention as the FBI warnings about piracy being illegal.