In no way this is related to what this site is about. There're hundreds of site where stuff like this is supposed to be posted and discussed.
I wouldn't care if I wouldn't need to read to all those cs and startup unrelated headlines.
I've been powerlifting for the last 2 years with the goal to be stronger at 40 years than I was at 30.
Now my 1RM squat is 192.5kg / 424lbs and my knees never give me trouble any more.
I think quite a few of us get into lifting partly because we need something to counteract the damage office jobs and sedentary lifestyles out of work do, and partly because it's something that fits the hacker mindset - weight lifting, whether oly or powerlifting or body building, lets you endlessly tweak programs and diets and measure results fairly precisely.
Most times when someone has a fixed idea of what this site is supposed to be about, they get it wrong. HN is supposed to be about literally anything, as long as it's intellectually interesting. We don't mean that in a highbrow sense—topics not traditionally thought of as intellectual are welcome. This story is perhaps borderline by HN's criteria, but at worst it's not far off, and the thread is substantive, so we decided not to call it off-topic.
Story diversity is super important here. No one would call Rust off-topic, yet we don't want a front page of all Rust stories. At least most of us don't!