IG增粉 : 기대 vs. 현실
http://simonhfxo656.cavandoragh.org/jeonmungaga-ig-mai-fen-si-munjee-jigmyeonhaess-eul-ttae-igeos-i-balo-geudeul-ihaneun-bangbeob
Other than, it's found out there are also some registrar companies who demand a notarized type or other formal recognition documents, but these are definitely just based on the specific county which the registrants