I walk for any code monkey hoop jump exercises. Timed or not.
When you apply to be a carpenter they don’t make you hammer nails, when you apply to be a accountant they don’t have you prepare a spreadsheet for them, etc.
I don't mind them. I expect any company worth a damn to want to screen out people who can't code. When I work there and interview other candidates, I don't want my time to be wasted, and I don't want to work with people who can't do their job.
A quick coding test is something that any places where people should know how to code has to do, doing it through one of those platforms seems perfectly reasonable, and I'm happy to do it.
Writing fizzbuzz is not "working for free" any more than any other form of interviews.
And is the "when you apply to be a carpenter" sentence really true? I've heard of the interview process for welders being "here's a machine and two pieces of metal, I'll watch".
When you apply to be a carpenter they don’t make you hammer nails, when you apply to be a accountant they don’t have you prepare a spreadsheet for them, etc.
I don’t work (even in interviews) for free.