Should out/ref parameters require the caller to specify out/ref like in C#?

[Nick Sabalausky (Abscissa) via Digitalmars-d]

That's what C# does. I always liked that a lot, and even argued in favor 
of doing the same in D (ages ago). It got shot down way back when, so 
unfortunately, I don't think any reversal is going to happen.

Getting in the way of UFCS and generic code are fair points, although 
they don't stike me as insurmountable. I think that if D's ref/out 
params had worked that way from the beginning we would've already hod 
solutions to those matters. And it does kinda bug me when generic code 
ends up being a reason to not have a nice benefitial feature for 
non-generic code, just fwiw :(

In response to any claim that this isn't a real problem in practice, I 
submit the possibility that, if it indeed isn't a real problem, maybe 
that's *because* of people (like Stefan and ketmar) simply avoiding the 
feature entirely so that it *doesn't* become a problem.