In all seriousness why is noone complaining aout the fact that a low elo hypercarry can remove himself from the game 5 times in 7-8 seconds whilst doing aoe damage... Low elo players could barely handle him prior to the item change. I mean I'm silver what do i know right? 
[sg-miss-fortune]
If you're interested https://www.youtube.com/watch?v=CdcVW_BJOvM
Döuble Tap2 votesIf you were looking for a balanced game and/or gameplay you are playing the wrong game.
Lohrr2 votesDoesn't it take a second to complete a q? Can he really do enough aa's to eliminate the cd 5 times in 2--3 sec? That's like 1/2 sec to remove cd.
Let's test:
Level 18 Master Yi (all skills maxxed). Lethal Tempo and Cosmic Insight. Items: Essence Reaver, Rage Blade, Phantom Dancer, Static Shiv, Nashors Tooth, and Wits end (starting as 2.43).
Looks like it takes 3 sets of attacks to (one double, 2 single to reset the cooldown), at 2.5 as, that's over a second (3/2.5 = 6/5 so 1.2 sec). With max stacks in q and 45% cdr, it's a 7.7 sec cd.
However, I'm about to report a bug that everyone has been abusing with Essence Reaver. While experimenting, it seems stacks get stored, so you can use it once, store up a bunch of stacks, then every attack after entirely resets your q. Yes, one attack was eliminating the whole cooldown with this setup (q was on around 8 sec cd with max points and 45% cd reduction). I take that back, even one of the hits from the q was resetting it after playing with it for a bit (I could q, then, during the q it would just go from 8 sec cd, to dark, and ready as soon as it finished).
Btw, I thought Lethal Tempo went above the 2.5 limit? Also, it should take 1.2 * 5 = 6 sec to remove cd's + around 5 more sec for the duration of q, or 11 sec for him to get it off 5 times in this setup.
AMADEUSdotEXE1 votesM-math.... [sg-janna]
Lohrr1 votesFor Life 
Meep Man2 votesThats only true if Yi is Q'ing only one person, otherwise it has to go through the animation, which takes about a second.
Tormentula1 votesBecause yi is sitting at a 47% winrate atm and all his core builds don't go essence reaver.
AMADEUSdotEXE1 votesYou know how for a while champion will be sitting at a crap winrate and then suddenly an item or build will pop up and suddenly theyre top tier? Wait for someone to figure out how to work Essence reaver into his core build. That item gives him all the stats he needs and a passive that synergizes with his ult.
Tormentula1 votesThat item gives him all the stats he needs and a passive that synergizes with his ult.
No it doesn't because yi is an on-hit champion that doesn't need mana in the jungle. Its a 3200 gold item that only gives raw AD, and attack speed (which he caps out with his on-hit build anyway). You just play him for his on-hit, including %health+built in true damage+double those effects with guinsoo's. Essence if anything only increases his attack speed when you ult so he'll be slower and dish out even less damage specialy vs. tanks.
20% CDR and refunding 20% of your CDs per attack isn't that great when you can use 2-4 attacks per second with guinsoo's and bring it down anyway.
Yi hasn't really ever been viable outside of being a low elo stomper, just recently the boosting strategy which has been around since ardent censor's rework has become more problematic with more champs like taric.
Sylias Ravenmore1 votesStop telling people.. This is my bread and butter in ranked right now
Warlord Rhinark1 voteswhy is noone complaining
Everyone is complaining about it though?
I swear, you must be the same type of person that puts "Unpopular opinion" in your post when it's clearly something everyone wants.