Is it bad form to do more advanced posts in instructor led classes without being cued?

This is Ashtanga Yoga Tech Support. Real questions from the yoga community, answered.

The Question

I have been practising for the past 14 years somewhat regularly and I know what I can do and not do, and i can do some of the more advanced poses. I attend classes regularly as I feel more motivated doing with a group of people than doing alone. While I recognise that most yoga classes are multi-levelled unless otherwise stated, sometimes I do want to push myself to my limit. Is it consider bad form to go beyond the instructor's cues?? Sometimes she just cues one pose, rather than giving opt…

— via r/yoga