Right now there are similarely named communities across the fediverse.
“fediverse@xxx”, “Linux@xxx”, “asklemmy”, “askkbin”…etc…
I’m on kbin and I’m having a hard time figuring out how to use the fediverse more productively, by reaching the largest amount of people for asking questions, solving problems, simply put: to engage… like I used to do on Reddit?
Supposedly your entire up-vote / down-vote history is publically available through some API calls. I haven’t verified it myself, but the what I have seen makes it look plausible.