Ignoring the uneducated claims about someone's IQ based on their public appearance, where in the parent comment did I say the word smart?
Also you downplaying the range of ~ +1.5SD is a textbook example of spending too much time on YT watching Jordan Peterson's lectures on IQ. People with actual* +1.5 - 2 SD IQ, are STEM PhD's, not your average Internet rando.
*subjects of standardized intelligence testing (WAIS, SB) not prone to practice effects like all the RPMs online. Yes, I just said that practicing enough Ravens will get you to Mensa provided a three digit 'baseline'.
The median STEM PhD probably has[1] around a +2 SD IQ, but the median person with a +2 SD IQ does not have a STEM PhD or similarly impressive educational attainment (2% of people have a +2 SD IQ but only 1.2% of people have PhDs, and only 20% of people with PhDs have STEM PhDs[2]).
Your average internet rando does indeed have a lower IQ, but given that someone does have a +2SD IQ, that person is still more likely to be an internet rando than to be an impressive STEM PhD, for much the same reason as your average 6'4" person is more likely to be a car salesman than an NBA player despite almost all NBA players being really tall.
Also, Mensa Norway has very similar test when you go to take it in person... and results are close to what you get online.