Did something happen around 2011/2013 that created drastic changes?

I have noticed that Mandela Effect has lost some fuel, I rarely see any new phenomenon these days. Specially on this sub, most of it are personal experiences and people misremembering this or that event and often people on comments leave clear that they DO NOT remember things in the same way the OP does,expressing it sometimes in a very sharp and straight way. It has been a while since I saw a ''big'' ME that carried a numerous amount of people and blow our heads like happened 5-8 years ago. It kinda feels like things have settled down a bit. Am I the only one who feels it this way? This makes me think and wonder if something weird happened around 2011/2013, something that disrupted our reality in a severe way and the climax did happen around 2013 with a lot of changes in our perception of facts and things. Which leads me to two questions

1-what was the last MASSIVE ME that truly shocked you and made you amazed and confused and that actually made you realize that things were not the same way they used to be

2-Do you think that something happened around the days Mandela died that shook this timeline and it was there when we realized that many things had suddenly changed?

Was Mandela effect some sort of wave to adjust our reality in some way but that it happened and was necessary just once and that is the reason why no new examples have come around in recent months/years?