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I thought .NET types were optionally nullable? I don't think they are by default.

Basic types are optionally nullable. int? is nullable, int is not.

It is a fantastic tool in many cases where a null is much clearer than something like -1 to denote a missing value.

However, I can see the issue with some developers using nullable types for everything. But any sufficiently powerful/flexible tool is always going to be misused by some.

I had the misfortune in the past to maintain C# code that kept everything as strings; whether it was an integer, a floating-point number, a guid, a date or a boolean. Lousy developers can abuse anything, in itself in my opinion this is not a reason to not have it included.

(I have a the same opinion about goto and operator overloading; clearly the folks at Microsoft agree with me here.)

They are optionally nullable. Unfortunately, people seem to think that making use of them everywhere is cool :(

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