this is what is wrong with this community. You can't tell if someone deserves to be an elo after a one minute clip. I'm in plat and I could've been hit by lee playing as that annie, it can happen...
sightsone is pretty huge on lee, cause u can place wards and w to those. Its a pretty nice disengage and you can mindplay/outplay the enemies while not wasting an entire item spot.
Ahh yeah it does make a lot of sense now. I haven't played Lee Sin enough to have thought of that, have just used wriggle's and an extra ward in the past on jungle Lee.