In catalogs where some authorities may not be linked it would be beneficial to have 'Did you mean?' searches constructed with terms rather than authority numbers as the latter can result in dead links.
Alternatively 'Did you mean?' shouldn't suggest unused authorities
Bumping this issue. This has a negative user experience impact for us because some of the "did you mean" results are authority records that aren't used in any of our bibs—so the "did you mean" links to an empty result set, which is confusing and frustrating. It'd be better to not allow suggestions that have no associated bib records.