When you have a generic proxy object like Object::Realize::Later, which more or less implements lazyness for method calls, it is quite convenient to have the object change class after it has been realized. Otherwise, lots of (brain-dead, I admit) checks fail when they ask UNIVERSAL::isa($obj,'foo');. Of course one could circumvent this problem with multiple inheritance or by writing a specialized ::Proxy class for every class to be lazy ...

In reply to Re^8: Informal Poll: Traits (Long Post Warning!) by Corion
in thread Informal Poll: why aren't you using traits? by Ovid

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