Do you think that it's clear/very likely that it is net helpful for there to be more mature suffering-hating civilizations? (On the suffering-focused perspective.)

My intuition is that there is no point in trying to answer questions like these before we know a lot more about decision theory, metaethics, metaphilosophy, and normative ethics, so pushing for a future where these kinds of questions eventually get answered correctly (and the answers make a difference in what happens) seems like the most important thing to do. It doesn't seem to make sense to try to lock in some answers (i.e., make our civilization suffering-hating or not suffering-hating) on the off chance that when we figure out what the answers actually are, it will be too late. Someone with much less moral/philosophical uncertainty than I do would perhaps prioritize things differently, but I find it difficult to motivate myself to think really hard from their perspective.