I'd be ok with this IF AND ONLY IF the job listing is explicit that it's a lead generation/ recruitment pipeline builder. But, it should be in big, bold text:

I'd be ok with this IF AND ONLY IF the job listing is explicit that it's a lead generation/ recruitment pipeline builder. But, it should be in big, bold text: THIS IS NOT AN ACTUAL POSITION, WE MAY OR MAY NOT EVER HIRE ANYBODY, BUT SEND US YOUR DETAILS AND MAYBE WE'LL CALL YOU. Of course, I'm assuming companies with actual positions to fill would gain an advantage here, but the whole recruiting industry is so broken, I'm not sure. Either way, the true ghost listings - positions that are box-ticker listings for internal candidates or H1Bs are pretty awful.