I have over 100 years of school based history to back my theory, show me where it is written that 5 is average on a 10 point scale. Also regardless of 1ups power in the industry I don't think it is up to them to decide that their average score is different than 90% of their associates. Its a ploy for them to get more press. OMG 1up gave "game x" a 5!!!!
I want answers, I want the truth.
Simple math my friend. The definition of average is the mean or middle value of a set of numbers. With the number set 1-10, 5 is the mean or average number.
EGM was around before the internet became the de facto place to see game scores and before Metacritic was used as the barometer of gaming sites. So the system they set was not made for page views it was made to review games. (Damn, now I sound like a 1up defense force.)
CGW now GFW magazine also tried reviews with just text and no score at all, but people revolted and they brought back scoring.
So now they are looking at the landscape that Internet game reviews has become over the years and they changed the scoring system to fit the times.
You still have not answered why you are funnier on your blog.