Do the votes actually matter? They mattered on Reddit because of karma, although I never did understand the point of karma. What is the point on Lemmy? I rarely even notice the up/down votes on a comment/post.

My balls?

If you go to the website for the instance you can list all the communities and subscribe to them very quickly. Just go down the list and tap “subscribe” next to each one you want to subscribe to. It can’t be any quicker or simpler.