> "Congratulations" on typed chat, phone call to boss within 3 minutes, and required a written report to senior senior management. There was unironic suggestions of doctors notes when the reason for the congratulations was their wife had just had their first kid.

I might be dense, what's the issue with congratulating someone? It can of course be for something untoward, but there are surely a lot more valid reasons for giving coworkers props ("congratulations on the promotion", "congratulations on your good work on project X", etc).