By which, just as with saying that you draw the line at shitty music, you wouldnt be answering the thread, since you are not specifying at what point any particular style or element becomes a no for you.
To get back to that Suicidal Silence song or the band and style of music (Deathcore) for that matter; to focus on one element (leaving aside the misplaced break downs, jump-da-fuck-up type riffs and what not), the hysterical screams is something I dont like and find annoying. I dont like them specially on death metal (in brutal/slam death in particular where they are used often) and I feel they do not fit the music, as opposed to the growls which match well the guitar tuning and instrumentation used in death metal. Suicidal Silence (and Deathcore in general) only multiplies this problem.
On the other hand, I dont mind that kind of screams in black metal; since I feel they go well with the music and the guitar tuning as well and so in that context they can work for me.