I noticed there are links to the old forum in the WIKI so they end up in a 404 error. Maybe it wouldn’t be a bad idea for now to search the WIKI database for forum links https://forum.manjaro.org/t/, and modify them all in bulk by adding the archived prefix to fix them? example here Burn an ISO File - Manjaro Linux (also the website and wiki are not consistent for this specific case, but this is another topic).
Then maybe at a later date as the threads are recreated/imported/updated on this new forum, the WIKI could be edited to point to current forum thread rather than the archived forum?
Just a suggestion because currently there is surely many many dead links in the WIKI.