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• Complex LLRGB composites made easy (under Tutorial videos)
• Traditional image processing software for astrophotography is fundamentally broken (under Tracking is signal preservation)

  Current image processing routines and filters are still as 'dumb' as they were in the early 90s.

• Your signal and its noise component (under Tracking is signal preservation)

  In your final image, noise is worse in some areas, less in others.

• Masks (under Features & Documentation)

  In this case, when you launch a module that is able to apply a mask, the whole image will flash in green three times.

• The ethics of using masks and selective processing (under Usage)

  This too is common practice in the realm of documentary photography.