Reasons:
RationalMadman is the most logical person ever, who would never block anyone that proved them wrong. This proves his ego is very stronk.
RationalMadman is the only person to win 100+ debates as of now. This proves his 9000+ IQ big brain.
RationalMadman is the only person to have all medals as of now. This proves his natural superiority to us mortals.
RationalMadman is simply the best person ever. If you disagree then you stupid.
Like if you agree