Anonymization option(s) is something we want to do, but as to when it would potentially be available I don’t know.
I want to add that in my view it is vitally important that (whatever other options there are) there should be an option that leaves the IDs active. Simply put, this is the biggest issue with account deletion.
To use myself as an example (I’m not planning to delete my account btw!) I am now the top identifier of hoverflies in Europe. I’ve identified more than a fifth of all European hoverflies (the biggest family in the order Diptera). The second top identifier in Europe, at their current rate, would take more than a decade to replace my IDs (without doing any others). This is the sort of situation that other taxa have faced. Perhaps it is unavoidable to give the nuclear option, but all of the problems stated above with keeping pseudonymised or non-pseudonymised-but-inactive account IDs active, in my opinion, absolutely pale in comparison to this. I appreciate that keeping anonymised account IDs active would be more problematic, but even that I think is worth considering.
another high volume identifier seemingly gone
https://forum.inaturalist.org/t/how-can-i-find-my-needs-id-observations-that-have-identifications-from-others/59867
it’s frightening to me how many more account deletions will happen before new features are implemented to address it