is duoq "boosting" illegal?

if i were to duoq with a challenger smurf so he can so to say boost me to master would that be concerned illegal and get me banned or is it actually fine?

We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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