Yes you are reading it wrong. You only have to check the MyCyclingLog Cycle Chat team to see some of the mileages that members achieve.
At the risk of coming across as a pedant, there are 16 000 + Cycle Chat members, of whom 157 contribute to the MyCyclingLog CC Team.
I kinda thought it was clear that by using the word *average* I was referring to the complete membership of CC, not the elite minority that contribute to MCL. Maybe not.
For clarity let me rephrase:
''Or maybe I am reading it wrong and the average mileage of CycleChat members is genuinely 100+ per week per member. It's possible I guess.''
Disclaimer: I genuinely believe everyone's stated mileages, and do not think it in any way, shape or form a bad thing for people a) to be doing a lot of miles on their bikes, and b) stating it in a post that is dedicated to that question.
Hopefully, none of this should be controversial.