Krille D

I don't know about the english part. I feel like that's a korean thing, i've seen some youtube of koreans and they do indeed drop in some english words or sentences here and there for good measure. I'm not a huge fan of it really, but I wouldn't say that it's exclusive to korean dramas but rather a part of the korean way.

Why would you watch any drama again? Once you've seen it you already know the drama? There's tons of dramas out there, why not watch another one instead of watching a drama you've seen before again?

Isn't the Goblin drama one of the most famous dramas? I've seen tons of parodies on that one and even got around to see it due to all the hype around it. It's even ranked top 1 on this site under the category "Most popular shows" on the front page.