I don't think the problems that are solved are nearly as trivial as you make them seem. Bot farms on twitter? Can't afford to do that here. Shitty no-context posts designed to farm likes? That won't earn you sats here and thus is less incentivized. People will send a couple sats around to silly wise cracks, sure, but if you hang around long enough, you'll quickly notice the trend that real value only gets sent to real valuable posts. Check all the top stackers here. . .they are on the top for a reason.