I used to read champion bios
I just can't follow something that keeps changing. I understand wanting to update things. Stories, however, are not like the game league of legends which relies on change. You can continually add to a story without removing what came before.
When I started the game I made a point of reading all of the character biographies before choosing a champion. I settled on Vayne but quickly my playstyle led me to play an extensive amount of Karma. Even though I haven't played Karma in a long time, she is still my highest mastery champion and it's not really very close. I have 110K mastery in Karma. I appreciate and enjoy the latest update to her lore, however, I would appreciate it a lot more if the lore never changed.
I am always in favor of new stories or adding onto the existing ones, but leave the stuff that has been around forever alone. Honestly, I've pretty much stopped reading any new stories or new lore updates. I know they're just going to change it in a few years when new authors come on board and want to update things even further.
I guess you can do whatever you want. It probably won't matter to me either way since I've pretty much lost all interest in reading lore. It is such a waste of time to even read it when there is a high chance that it will change.