When posts are merged, the original post's URL becomes a dead link that shows an "Idea not found" error ("This idea was not found or may have been deleted"). This is a poor experience for anyone who has bookmarked or shared the original link.
Instead of displaying this error, merged posts should automatically redirect (301) to the parent post they were merged into. This would ensure that existing links remain functional and users are seamlessly taken to the correct, consolidated post.
Attached is a screenshot of the current error page that appears when visiting a merged post's URL.