Winning a Gurushots challenge has very little to do with talent and a lot more to do with both chance and manipulation.
Just look at how most, if not all members vote. The requirement for everyone to vote on so many photos demands way too much time for those of us with lives outside the app. This encourages speed voting which is simply tapping the positive vote button as quickly as possible in order to gain exposure for your own images. When your images gain the exposure you will also receive votes made by those similar fast button-pushing voters for the same exposure rewards. More exposure is given to those who wish to pay heaps of cash for image swapping and boosts. On top of this, I hear there are organised groups willing to help boost you for a price, sad but true. I also get the feeling that, like many, if I actually do get to Guru status I would simply consider this stupidity completed and give the game up. I also think Gurushots understands this mentality and have a vested interest not to let too many people attain this status. Like gambling addicts continually betting in the hopes of hitting the jackpot.