The synonym suggestion system confuses me - Meta Stack Exchange

I read "How does the tag synonym suggestion feature work?", but I ran into what may be a problem or nothing at all. casting is most used, so I suggested type-casting be a synonym. Then I suggested

Stack Overflow Mentorship Research Project - Meta Stack Overflow

Powerful? Yes. Confusing? Also yes. : r/ProgrammerHumor

Can Thanks for your edit! banner be linkified with the Suggested

database - In an ERD can 2 actions be connected to each other

Stack Exchange is not a forum: the role of “niceness” on a Q&A

Why is Stack Overflow trying to start audio? - Meta Stack Exchange

Apparently, this user prefers to keep an air of mystery about them

Custom 404 pages are gone :-( - Meta Stack Exchange

Deprecating our mobile views - Meta Stack Exchange