There may be a large difference in quantity of observations. The OP has very few posts or comments (unless this is a new account for a longer-term contributor), where you’ve been updating your model for years, over many hundreds of posts and comments.
My general advice is to not worry much about karma—it’s a good signal, but quite noisy and intentionally information-light in order to increase participation. It should be a guide to what topics and styles work best, but don’t overfit, especially in your first dozen posts or hundred comments. You’ll get maybe 1⁄10 as many comments as voters, but comments have a lot more informational value.
Your experience differs from mine. When my posts get mass downvoted, I never have to guess why it happened.
There may be a large difference in quantity of observations. The OP has very few posts or comments (unless this is a new account for a longer-term contributor), where you’ve been updating your model for years, over many hundreds of posts and comments.
My general advice is to not worry much about karma—it’s a good signal, but quite noisy and intentionally information-light in order to increase participation. It should be a guide to what topics and styles work best, but don’t overfit, especially in your first dozen posts or hundred comments. You’ll get maybe 1⁄10 as many comments as voters, but comments have a lot more informational value.