You might want to rethink the build a bit. That one extra point in hide is also a waste (especially with the new WoE dailies & cheap wind elixirs on the AH nowadays). My hide is only 1/3 and I don't use wind elixirs, and I still manage to win colo on rogue from time to time.
Mark of genocide actually is worth it, even though the horrible 2% crit bonus looks like a waste on paper. All the crit bonuses do add up, and it will increase your group's overall DPS. With the release of CoA and the time-based DPS fights, every little bit counts.
Mark of death = complete waste (sorry to anyone who likes the skill). It's really just not worth the investment. Maybe in the future they will buff the skill so it's worth using, but right now it's pretty much garbage. The 10% looks nice on paper, but in reality it's barely break-even due to the cast animation and risk/reward of missing or having to move away during it's duration.
I assume the 5/5 in DI is for colo, which isn't necessarily a bad thing. You might want to consider dropping a couple of points in it though.
The combo training is debatable but personally I feel that poison weapon at 5 vs poison weapon at 1 is what will really make the difference between a rogue's DPS (assuming they have the same str and crit rate, and similar rotations).
I only use poison weapon 1, but level 5 is definitely better for raids/pve type stuff
If you dropped 1 point from hiding, 2 points from DI, and 2 points from combo training, you could max Moonlight Dance. I really like it for both colo (catching runaways, or a while-frozen/snared final attack) and pve (the SB + MD combo can be a really strong burst if you have the 20% crit bonus from unstable doping at the same time).
I know some other good rogues who prefer not to use Moonlight Dance, and ever since they fixed the "move while dancing" trick with auto-run I don't blame them. It still has a place in my heart though.
In any case I think your decision should be whether to use moonlight dance or not. Even if you choose not to, you should try to max MoG. I know it sounds horrible-- but you gotta blindly trust me on this 
Edited by xxalucard, 31 July 2013 - 12:57 PM.