[otabdeveloper4]

Sometimes, yes.

But really there's all kinds, from "we don't want this guy who insists on keeping the old C++ codebase alive" to straight-up people who engage in fraud because they think the company owes them.

That said, my personal view is that you should keep "legacy employees" unless they explicitly refuse to work.

[Cthulhu_]

Yup, even if they're no longer productive in terms of code output, it's worthwhile keeping them around for their knowledge of the systems - you cannot replace that, and if you try, you end up having to either 'archive' their work with a big "we don't know how this works, but it does so do not touch", or re-engineer it from scratch which is very expensive.