old forum messages that were indexed in Google are forwarded to the new forum messages very nicely.
But I noticed all forum messages are indexed differently in duckduckgo.com & Bing & Yahoo , and most of them end up on a “page not found” on the new site.
for instance this forum tread is indexed in DuckDuckGo & Bing & Yahoo like:
http://www.derivative.ca/Forum/viewtopic.php?t=13197
(which generates a page not found on the new site)
but in Google it is indexed like:
http://www.derivative.ca/Forum/viewtopic.php?f=27&t=13197
(which is perfectly forwarded to that same new message on the new forum)
You can check this by searching for
rotate along path site:www.derivative.ca/forum
on Google/DuckDuckGo
I realize us privacy-loving-DuckDuckGo users are just a tiny fraction of your Google users, but hey, can we get some love