Because it's not necessary to point out every inconsistency, when it doesn't really impact the message.

B.Carfree does ride a lot, and would be justified in being proud of that, so I can understand why he'd point it out.

By coincidence kc4sox describes my own actual riding precisely, except that it's been 4500 to 7000 miles annually depending on how consistent the commuting is. So I can relate whether his actual mileage is really 2000 or 6500 miles, or it's 2,000 year to date, or whatever he meant.