Your home page may feel transient — https://university.edu goes away; geocities ages out; you may not want your professional page to point to your weird art project or vice versa. I suspect linktree feels like neutral ground to some.
I don’t think the vision is fully realized so this is just “in theory”, but I suppose the number of people on different social sites vastly outpaces the number with their own homepage. Plus ideally linktree would provide a standardized structure for the network data to make automation easier?
Comments