I know for my personal body chemistry, greens can cause an irritable/aggro feeling, and reds/golds usually feel weak and don't do much. To me good whites feel energizing, motivating, uplifting, and mood boosting.
Then again, some posts in the thread also hinted there are other (perhaps superior) ways to create white strains so
Please drop your wisdom here knowledgeable Kratomites! What's the real deal with "white" strains?