Yeah, I've got a reasonably large number of bookmarked links and extracts too. Part of the problem if they're permanently lost will be the optics; for good or ill many of the things I have bookmarked are those elements from the DDA and elsewhere in which FD propose or discuss game elements that have never (at time of writing) seen the light of day. They're particularly useful when new players post ideas about potential improvements to the game, and a quick link serves to demonstrate that FD had the same idea years ago but never ran with it. If those archives are lost forever it may appear to be a deliberate Memory Holing of contentious ideas. Even if third-party sites archive the material, not having them available from official FD sources weakens the impact and risks accusations of falsification.
I know Support want to drop vBulletin like a hot potato but it would be great if FD would consider a locked-down, read-only archive of that material that isn't being moved over to the new system. Even without it's usefulness as an "ammunition dump" the history of ED's concept and development is almost unique in the industry and a lot of that lives in the forum archives. Even now there are new players joining the community who have no idea as to the unique origins of ED until it's presented to them. It would be a shame to lose that.
*cough* wayback machine