DiaNine wrote: There isn't any, and I don't think anyone should give advice on dramas not to watch.
I agree. There's nothing wrong with recommending either to watch or not to watch a drama, but kindly bear in our mind that everyone of us have different taste and opinion. One person may find the drama boring and nonsense but another find it enjoyable and maybe even a gem. We can just advise someone not to watch a particular drama if we put into consideration his/her preference.
Kromesta wrote: Big - you can check mdl and sort by ratings on completed drama to see the lowest score drama i rated which i advise everyone not to watch!
Even though this feature in mdl is quite helpful, it is not fully correct to say that low rated dramas are not worth watching. That's why we have something called
Underrated dramas, we even have a thread like this. Classic dramas or some not much commercialized drama are usually rated low compare to the newly aired one, but we can't say that they are horrible.