WARNING This post turned out way longer than I thought it would. I'm never babbling on, and I think it provides some good points, so read if you have the time. If not, skip to the tl;dr.
As of S4, a lot of the players who have always been around Plat 3/Diamond in previous seasons were noticing a lot of players who they have never seen in ranked before.
It used to be that almost every game, you'd get names that you'd seen before (after all, the highest elo is supposed to represent a very small portion of the population.) The sudden (seemingly) inflated number of high elo players caused confusion because of the changed ELO numbers (Diamond is now 3700 compared to 6000 from previous seasons) and the reset in uncertainty (games were swinging ELO in 100< compared to 5 per win in a slow grind).
What people fail to understand is that it seems that the R6 dev teams wants to keep Diamond at around .5% of the population. My guess is that this represents the players who actually play ranked. Operation Red Crow (S4) saw a huge boost in player numbers. So just for argument's sake, let's say that 100k people played R6 pre-Red Crow. Split that among 3 platforms, and let's just say 40k on PC. .5% of 40k is 400. NA/EU split leaves us at 200 NA Diamonds. If I REALLY wanted to get technical, I'd go as far as to split Bomb-only Diamonds and Diamonds who play Secure/Hostage (because the skill gap is very apparent). So that leaves us with roughly 130 Diamonds.
Now, let's just say that the player base doubled from promos, sales, and bugfixes to 200k. A simple x2. That would mean that 0.5% is now 260. If the entire population doubles, so does the Diamond population, and that's probably what high elo players were seeing.
You also need to keep in mind that ALOT of players did not play ranked for various reasons including matchmaking errors and cheaters. It would make sense to think that a somewhat significant number of players did not play ranked, and only just started. So if I consider that in my hypothetical numbers, a more representation would probably end up with 100 Diamonds pre-Red Crow to 250 Diamonds. It's the same 0.5% of the population (S2 actually had 0.4% in Diamond), but it's also a 150% increase. Of course it looks like everyone is getting Diamond (and Plat/Gold for that matter) to the people who were already there.
Now, I think the real problem is that they decided to do a "hard reset" not only to one's elo but to one's uncertainty factor, which meant that everyone was going to gain/lose 100< elo per game. Then, they made it possible to place as high as Plat 3. This means good placements puts you at the second highest rank. And whereas the grind from Plat 3 to Diamond used to be around 5-15 elo/win, people were getting 100 elo/per win, and jumping from Plat 3 to Diamond in 3 games. The fact that there's no elo decay at the highest level of play means that people can just never touch ranked again this season and get the rewards for being at the highest tier.
If the player bases continues to grow, R6 needs to add more tiers at the highest level to force players to continue proving themselves. ELO decay at Diamond or Top 50 List or even Diamond 1, 2, 3 are all ideas to make it even more clear. To be honest, even pre-Red Crow there was a huge discrepancy between P1 and P3 and Diamond and among Diamond players. The very top is always going to need more layers to reward the truly skilled.
Also, no matter if the reset is hard or soft, nobody should be able to place into the 2nd highest tier of ranked. I understand that a player who is in Silver would not want to play against a player from Diamond, but when a season resets, no other game with competitive ladders (afaik) allows you to place in what is seen as that game's prestigious ranks. (Which leads back to the fact that R6 needs a more prestigious rank that only the best of the best can achieve) Forcing people to place around the middle of the curve (high silver - low gold) means that as games are played the better people will eventually move up and the less skilled will move down. Those who are in the middle shouldn't see a big shift. This provides the most accurate representation of actual skill. If someone were to place into Platinum, and suddenly think, "Damn, I'm good." that is lack of clarity from the ranked system. As that player continues to play ranked (if he does), and deranks to Gold. He will never be happy, and start blaming his teammates.
- R6's player base has seen a growth around Red Crow. Some people just started playing Ranked. This means that 0.5% of the population post-Red Crow will naturally feel much larger than the 0.4% pre-Red Crow. (See above for explanation)
- Devs said this reset would be a hard reset. (Hard reset would mean one's ELO as well as one's uncertainty factor so that Matchmaking treats you like a player who is playing ranked for the first time.)
2a. People placed into Plat. This should not happen. High uncertainty meant people could win 3 games and hit Diamond.
2b. There is no elo decay at the highest level, so people can stay at those ranks and receive rewards.
- High Plat/Diamond is becoming overpopulated as the number of players grows. There needs to be some new system that forces players to continue to prove themselves. This brings back the feeling of prestige for the highest ranks.