Has total yearly mileage always been important to you, or is that now you can easily track total yearly mileage it's become important? Even if it's the former: 35 x 5 x 48, done. Is it so important to know your mileage within a 10% confidence margin?
I just mean to say (at least to myself) is that simply because we have the ability to measure different thing via strava / sm apps doesn't make them worthwhile. The most pernicious aspect being that it morphs our ability to be introspective, altering our 'why do I do this' to 'I wonder how I appear'. Which is of course obvious - but when it rears its head in an app supposedly based on life activities and not digital thoughts it should give us serious pause.