Why I take ghost as jungle.
So I've been called a troll before for taking
as a jungler. Before the first monster spawns, I ward the enemy buff directly across from mine to see where they've started. Now, I'll clear my buff, then immediately
Over to the buff that they did not start, and steal it. I'm a heavy counterjungler, it's just my nature, and since ghost allows me to be in and out of their jungler quickly, I've found it more useful to my playstyle than Flash. Lower CD allows me to use it more often, and I rarely do things outside of CJ'ing that would endanger me to the point of needing it.
Anyways, the whole point of this was to explain why others' summoners might be different than what you'd expect, but that doesn't necessarily mean that they're trolling.