Maybe because he began to post at SimHQ way before this forum creation ?
Oh no ... now I will be obliged to go back and calculate the average throughput of Oleg's mails on the 2 forums, and find out that 1066/9 years = 118.44 posts / year, and 106/1.6666 years = 63.6 posts/year ... but I'm too lazy to do that ...