StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    Why NSMutableString inherits from NSString but not the other way around?
| Author | Votes | Δ | 
|---|---|---|
| vikingosegundo | 1 | +0.67 | 
| Abizern | 1 | +0.89 | 
| Analog File | 0 | -1.24 | 
| analysiser | 0 | -2.63 | 
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