By comparing the skill gate between diamond 3 to master and other elos you showed you don't have experience about what i am talking about and therefore should not diminish other people experiences.
You may not like it but today divisions are separated by best of 3 and elos by best of 5. The day the difference in skill between D3+ and other elos like Gold3+ turn into the same [comparing to the same elo] i would be very happy as would be just like every other elo, what is not.
You don't understand the hell of difference that comes with this climbing through this division to master and i never ever mentioned a gate between diamond 5 to diamond 4[what the fuck] . You don't understand how insane and crushing the difference turns on you after reaching D3+. I have played on every single elo and there nothing compared to that.
I play since season 3 and i have been Master-High diamond in every single elo since i start playing it, i'm not a "recently climbing guy".
http://www.lolking.net/summoner/br/796297/%20Siegfriedx1#leagues
Also who the hell here agree with you that all the best of 3 systems should be vanished and they are negative to the game? What people don't like is how the game decides how much pdl you should lose by defeat and how low you start after losing a series by bad luck. Nobody wants to lose pdl when they did a good job or deserved to win. Nobody wants to have 2 afks and find himself needing to climb all again and nothing about that have anything to do with the best of 3 system itself so stop crying about it. Riot even start giving free wins to people that lose series to low elos after a while.
If when you lose a game by an unfair way your pdl losses were halved i doubt any one would have any problem with it [but we don't have enough technology to apply that without being exploitable].
The point of this post is that diamond 3+ have nothing to do with other elos and the gate is so freaking heavy that it should have some special way of demonstrating that. It's not "just like all other elos".