(Appreciate the clarifications; yes, LinkedIn is randomly highly aggressive to users, gatekeeps content, etc.)
To me, while I agree such a use case might make sense in a very narrow context, homomorphic encryption currently supports a limited subset of resources normally available on a computer and even doing basic operations on a small amount of data takes a very long time, adds a lot of complexity, custom information formatting, etc.
As such, in my opinion, unless I am something, homomorphic encryption would be a poor fit for a use case similar to SecureDrop’s use case.