So, in plain English, you (Epic Inc.) have “just” had removed access to all the wiki pages (content) created by other people (e.g. 3d parties / supporters / loyal community) in a one-way manner, without prior notice, without “grace period”, without even an apology.
I do appreciate that I have had stumbled upon this case prior to being heavily invested into the UE4 development (selecting engines stage).
You (Epic Inc.) have just herewith by thine own hand depreciated all the prior efforts made by Epic Inc. (e.g. yourself) such as acquiring Quixel, Cubic Motion, offering an “Epic Grant” and whatnot effectively downto zero.
Since you (Epic Inc.) can so easily make such internal changes affecting your own loyal community, then nobody would be convinced that this will not happen again in a different form (e.g. license, royalties, whatnot) in the future - just like the you-know-who did last year (whom Epic made every effort to differentiate themselves from).
This move / approach / attitude alone clearly indicates the priorities: corporations-centric, with an authoritarian Chinese signature (cough Tencent cough).
I have seen this before in creative world (Adobe) and have had hopes this will not happen with Epic, but I am glad to notice how wrong I was and make it this early.
Open source all the way.
Thank you for paying attention.
Edit: spelling.