Generally speaking I think many people on this forum as S, only a few are really abstract and truly intuitive - at least that's how they come across on this forum. But then there's that bias that N is related to intelligence and being 'different' that many buy into.
There is a strong N bias on many of the personality tests.
I remember when I got people in my fraternity to take the MBTI that there was a high portion of N's.
Both me and my INFJ friend agreed that many were actually S's but many were quickly convinced S fit better after reading the profiles.
At the end, we agreed on a 2:1 S/N ratio.
All of them are intelligent and enjoy ideas but are more practical than imaginative.. concrete than abstract.. etc.
If that's true here- they are probably S's in denial.