Please don't twist words like that, it makes for a dumb debate.
Anyways, what one uploads to Strava is what one wants to share and have analyzed. If you don't give them permission to hold your health data, then it's no point in using the service. It's not really a dark pattern. It's not like it collects stuff about you in the background, one explicitly has to sync activities there. So you are wrong, they're not stealing a shit.
No, it's not stealing, that's true. However, if data is collected without consent or if you are manipulated into giving consent, you can make an analogy to stealing: A service that only tracks me a little doesn't exactly instill confidence.
(Whether or not manipulation was going on can be argued. I made my point in the other subthread)
I agree though that other services collect more stuff and that services like this can be very useful if you're still in control. (As far as the usefulness vs risk of cloud services goes - that is after all the whole topic of this thread. Also, even the most well-meaning business can be hacked.)
Anyways, what one uploads to Strava is what one wants to share and have analyzed. If you don't give them permission to hold your health data, then it's no point in using the service. It's not really a dark pattern. It's not like it collects stuff about you in the background, one explicitly has to sync activities there. So you are wrong, they're not stealing a shit.