Actually, I found the sample on freesound.org and used it in my song before I knew Datsik used it in his song. A lot of big artists get samples from there. At least I used the sample kind of in the background unlike Datsik, who blatantly slapped it in without any other instrument or sample to accompany it.

I try to keep my songs as original as possible, including this song. Just because one sample was also used by a big dubstep artist doesn't mean this song lacks originality.

Also, originality, unfortunately, is not always the key to success. There are TONS of songs, in Electronic music and all other genres, that rip off other songs and are still very popular. For example, in his song "Body Shot", Tantrum Desire ripped off the Sherlock Holmes theme and the song, if I recall correctly, was pretty popular amongst Drum n' Bass fans. Don't get me wrong, I'm not saying this is OK to do because it's definitely not. However, in this case, I did not rip off any song(s).

So, just think about it more before you go around pointing out what samples people used. In fact, instead of doing that, how about give people some constructive criticism instead? That's a much better thing to do. :)