If you are going to announce something like this on HN, you really should tell us what Strava is as soon as we visit the website. I gave you 20 seconds, I didn't have a clue, and I left.
drainmaker is a review site I guess you could say. He actually uses the bike/swim/run equipment he reviews. The reviews are very in depth. He's also pretty technical (I believe he used to work for Microsoft). So he's talking about the this change.