Hello again, Sansarians!
Another idea I was considering in the previous post I made about In-World transactions was cookies.
The basic idea from LL's perspective is that they don't want to host persistent scenes as an extremely efficient alternative to the always-on grid system, so enabling a cookie system to link with the client, relay experience-exclusive data to the scene, and so consequently allow for what ordinary websites deem enough for the front end (sans login, which is already client-handled) to show customized content to the user.
Not only could a single cookie per user be very low-maintenance but it would allow for many new creator opportunities such as customized user content and industry-standard persistent data (such as those within websites).
Let me know what you guys think and don't forget to vote if you like the idea!