I've spoken... Sorta...
Most of the below comments have summarised what I have to say about this song and your definition of DnB.
Drum 'n' Bass is the name of the genre. It's only a name. You have to realise that this is not Drum 'n' Bass. I'd file this under Misc. or Techno. If you want this to fall under DnB, give the drums a more racy and break-ish feel to it. And make it faster - slightly. I counted the BPM and it ranks in at 100BPM. So you need to make this a relative 80BPM faster.
As said before, listen to other examples. I'd suggest 'Halflife' by Stogmaster, and maybe 'Black Radio Kosher' by GrandPian. If you can analyse what makes those songs fall into the DnB category, then you're gonna be a whole lot closer to crafting a proper DnB song.
Now, don't come on in saying that I'm wrong like the rest. Because in fact, you're the one in the wrong. Either live with the fact that this isn't DnB and you put it in the wrong category, or just get out of Newgrounds and take your stubborn attitude with you.
I'll give the song itself a 4/10. It's a bit boring and thin. You need to add more of a breakbeat feel to it.
I'll give YOU 2/10 for not accepting the fact that you made an honest mistake. Just admit it. This isn't DnB. It's a fair way off, as well. Denying it will only make you look like more of a retard.
After calculating both the above scores, overall I rate this 3 stars out of 10.