Exotic currency pairs! Never. I have never traded minor currency pairs, I find them risky. Can’t think of exotics.
Scalping exotic currency pairs will not bring as much profit as they offer widest spreads. And for scalping profitable currency pairs should have tightest spreads.
I would say it is better to avoid them because exotic pairs are unpredictable and if you are trying to scalp with them, it is a bad strategy since their spreads are the widest.
Trading exotic pairs would require traders to trade with large amounts of money so as to compensate for the wide spreads.
Exotic currency pair spreads are wider when compared to other currency pairs and they can be extremely volatile also unpredictable since most traders avoid them due to low liquidity in the market.
Exotic currency pairs are highly volatile and offer very little liquidity making them very difficult to anticipate their movement. Due to the very little liquidity these pairs offer widest spreads that reduces the profitability of the trade.