On Reddit, my karma was always weighted more on the question side than on the comment side. I felt bad for not being a valuable contributor to people’s lives rather than being selfish and always asking things for myself. Lemmy has gotten rid of that point system so now I feel like I can feel free to ask as many questions as I need without having to balance my karma. Also, I have noticed that I participate so much more on this platform than I ever did on Reddit.
I only ever found two uses for karma on Reddit.
There were some subreddits that imposed a limit on commenters requiring them to be above a certain karma threshold before they could comment or post, which most people would probably pass in a matter of weeks. I can see the use of this as a spam prevention mechanism, but it’s a pretty trivial thing if you’re a “real” account that’s sticking around for a while.
And when I passed 100k karma I applied for membership with the “century club” subreddit out of curiousity to see what was going on in there. Turned out it was pretty boring. Oh well. As far as I’m aware there’s no such thing as a “private” community in the Fediverse so this wouldn’t even be possible here.