First came organic growth (via universities). Then came integrated growth (via an open network, open platform play).
Next comes perpetual and predictable social utility services, and that assumes homesteading more of your online data.
This includes things like your social connections, your conversational threads and any social media content shared in the public cloud.
Looked at openly, honestly and earnestly, you would have to agree that there is a big "snail trail" that you create when you participate in social networks that is natively (naturally) interlinked with Topics and Users.
If you quit The Community, it just isn’t reasonable to assume that the substrate that you created and all of the interconnects (jointly forged) would magically disappear.
To build contexts, share content and create conversational ties, you need a sense of permanence and co-creation "skin in the game."
No less, you want a thriving market of developers committed to bettering your information aggregation, information filtration, player and playback experience.