Because authors need money to create these stories and by not waiting 3 days they won’t make much money.
Some of the uploaders give way to author on lezhin to earn from those who want to buy the chapters and support. After that, 3-4 days they upload it here. Imagine if the update was posted at lezhin today, and they also posted it here today or tomorrow, the original author won't earn much because its free here. The author use manhwas for their living so it is some kind of respect also to the author... I think??
Therefore they will have to drop the story
Why are the uploaders fight over who uploads? Like y’all still both doing illegal shit don’t fight over it lmao