I'd love to see the idea of lite account upgrades being free and almost unnoticed to the new user. Interactions they post could still be votable, but tied to an existing full account that acts as a sort of "slush fund." If this can somehow be set up trustlessly great, but more likely these would be onboarding accounts set up by the particular dApps and services using OpenSeed's lite account features. Basically once a lite account acquires a certain level of rewards paid out... the normal 3 HIVE creation fee or maybe a bit more, then the applications can automatically prompt them to upgrade at no cost to their "premium" account for being a good user. I'd imagine this would just require some kind of unique memo be appended to each individual lite account's posts so that their cumulative total can be tracked while in the onboarding system.