I’ve never worked _anywhere_ where reporting someone to HR was anything but negative impacting for your prospects at the company. And I’ve worked at lots of places in many dimensions (company size, industry, age, etc)
This usually applies to Big Bank.
Is that a dynamic they have? I haven’t worked at Big Bank but I’ve worked in finance a few times and at those places and other industries I’ve worked in reporting anything to HR wouldn’t necessarily get direct consequences but you would permanently be on their radar and have to work to rule after that
I’ve worked at a big bank and other large financial service organizations.