Overall rating must be watching the full plot.Still i prefer watching half.I have never rated a drama watching 1-3 episode. Either i drop that or never added in watching list.
Many C-Dramas r rated so high here than they actually deserve. Its actually a fan service. It depends on the artist. how popular they r! u hardly find a low rated drama of a popular C artist. Actually the old user of MDL used to rate drama based on story/plot. Nowadays there r lots of new user. Even u'll see fanwars in certain artist Profile (most C artist) so genuine ratings r really hard to find here nowadays
MDL should stop rating system of any drama atleast before finishing Half. Ppl started rate a drama only after watching 1-2 ep.How come this is justified!! Recently this things r Happening mainly with K-Dramas.