`org-ctags' unilaterally sets the hook `org-open-link-functions' to a bunch of org-ctags functions and enables itself by default. That has the unfortunate consequence of invalidating the documentation for internal CUSTOM_ID links - see
https://emacs.stackexchange.com/questions/76351/how-to-follow-an-internal-link-in-recent-org-mode It is also confusing. To quote the unfortunate victim: Now, when I click on the link, or C-c C-o, I get a dialog to "visit tags table"... ??? I proposed a work-around, but it seems to me that `org-ctags' functionality should be opt-in and there should be a way to turn it off. In addition, it needs a better way to interpolate itself into the link ecosystem: breaking internal link functionality is rather obnoxious IMO. WDYT? -- Nick