I can't believe that every full time stock market or forex trader, and that's the closest square equivalent to crypto trading, out there is contentedly registered as a gambler and not paying a bean, but one thing I've gleaned from the people who've gone a bit deeper into this with various accountants is that no one appears to have a bleedin' clue.
Spread betting and binary trading I can believe. I don't buy it otherwise.
They are classified as gambling and trading with btc is no different. Stockmarket and/or forex trader are companies, not individuals. Remember with CGT one can offset losses against their gains. Gambling has no tax because gambling losses are not, obviously, offset against wins.