What is insane by SA standards?
On the very “experienced” dev salary dip, in my experience it’s primarily an issue when glass ceilings are hit. When a developer realizes that they can’t really make more and/or get promoted from where they currently are, there is little incentive to keep up on things or learn new tech, which eventually bites them when they move jobs. Also, since in SA management is usually a pay tier over developers, there is some selection bias due to ambitious people moving into management in order to progress their career and/or pay.
There is a big discrepancy here between SA and places like Silicon Valley here (I would say that Europe falls somewhere in the middle). One of the reasons SV is so successful is that they manage to keep very experienced developers engaged in terms of both work and pay (developers can get and/or exceed management salaries), which allows them to develop and leverage this advanced skill set effectively.
R80k per resource, per week for in-house. It was to add a number to a list and for testing. The code would've been seconds. Testing would've been longer but primarily done by the testing team.
It's definitely been up there in terms of resourcing costs I've seen, vs work performed.