For those who've launched on Product Hunt: what happened on day 3?

I'm planning a launch but I'm more curious about what happens after the launch day ends. Everyone talks about the first 2 hours, the upvotes, the maker comment. Nobody talks about day 2, day 3, day 7. Does traffic keep coming do signups convert or does it all drop to zero?

My suspicion is that most launches are a one day spike and the real work starts after but I don't have the data to prove it.

So for those who've launched: did your Product Hunt launch contribute anything to growth after the first 48 hours? And the harder follow-up: if you launched again what would you do differently for the week after launch day not the day itself?