The thing is, some people do and there’s nothing wrong with that (not having a go at you, yours is a quite reasonable post, it was just a good place to put the comment). My laugh about people having to tell us they don’t give a shit is a sarcastic one – fine if you don’t then ignore it. Likewise if for you it is just for logging your rides then ignore the leaderboard.
For some of us the leaderboard is a training aid – it gives you a target to aim for. I’m quite happy to admit that I’ve gone out on rides and hammered a segment I’ve been aiming for to try and get the KOM – that’s not against the spirit or rules of Strava at all – I have a tendency to ride steady most the time, so having something specific like this to aim for is good for me. If people upload e-bike or motor paced rides then that does spoil it – as njee and others have mentioned, contrary to the belief of many who aren’t near the top of the leaderboards, most rides at the top are genuine rides.
Of course the KOM rides might be with a tailwind (most of mine are 😉 ) riding in a group, or during a pro race, but that’s all fine – those people are still all riding a bike in the normal way bikes are ridden by the vast majority of people. If it puts the KOM out of reach of normal mortals on solo rides, then so be it – I’m not going to motorpace to get it back (though I might consider the TT bike at some point!)
Oh, I quite often record unicycle rides as runs as they’re more similar in speed and settings I use for running work better than the settings I use for bike riding. I do usually try and quickly change the type of activity after uploading, but did once get the ride flagged very quickly when I didn’t get around to that immediately and stole somebody’s KOMs with rather unfeasible times!