I've looked at this site and its sister sites. Yes there are way too many fake profiles. There may be some actual users but they are few and far between. The owners of the site in the terms and conditions claim copyright on your photos and even admit to using them to create profiles on their other sites. Also the prices are too high. Yes you can join for free, but then you can't do jack shit.
At least on other sites like Plenty of Fish you can actually use the site for free. And there are actual people on there.
Gilbert does NOT recommend KoreanCupid.com to friends/family