.Korean Subtitles on Kdramas

It would be great if there were more dramas with fully completed Korean subtitles... I don't know why there are a number of dramas with 100% KO subs and then none for the last 4-5 episodes. That's frustrating, and I don't know whether I should hold hope that they will be completed soon and put off watching the show >.> 

There are a lot of other websites I can watch Korean dramas; if Viki could actually provide Korean subtitles consistently for recent shows, and for on air shows too, I'd 100% jump ship to Viki right away... Right now the KO subtitles are mostly updated slowly for on air shows or they are available for a couple episodes and then no more... and I have no idea when they will ever (or if ever) they will be completed :'(