I don't see how ruining the game for someone who isn't as good as you are is a challenge
Generally, whenever I solo queue, I end up getting put up against a full team of smurfs, compared to my team of me and 4 special ed students. I can hit all the onetaps I want, I ain't savin' that.
Alternatively, it's harder to go from pro to silver because the playstyle is so much more different and you no longer know what to expect, and stuff just hits you before you can expect it.
Other than that it's pretty easy.