[sonorous_sub]

Profiles over there have been glitchy for a while now. I gave up on favorites years ago and just bookmarked everything of interest in my browser instead. User metadata is probably a low priority item for their staff. Still one of my top five favorite sites on the web.

[Ekaros]

Sounds to me that they have some very poorly thought out database schemas with pretty weird foreign key choices... Provenance is not unimportant, but maybe in case of Internet Archive lot less important...

And in the end fixing poorly designed accounts and information linked to them can be hard.