Wetin fit be the possible dangers of doing P2P transactions with only one merchant for these centralized exchanges wey still dey function like ByBit, Remitano and the others? I dey curious because aside say one or two small price difference in kobo, e get any danger? Now, nor be say the transactions dey happen out side of the platform, e fit be say once you don trade with the merchant before and you come like them based on their price and how fast dem dey pay, you decide say anytime you want trade you go contact them to trade but everything go still happen inside the exchange just to dey safe.
I don't see any need using one particular person to trade why because price may change, s/he can also change in their character and got you scammed.. see whatever we are doing on p2p exchange we should know that there are scammers who may tends to be a cool guy and whenever their target is reached on specific amount and they got it from you, you would see how fast they could be to report you because they knows you can't trace them.
While we may have different opinions on this me personally I have the same sentiment with you I can never be comfortable trading with only one merchant in any of the centralized exchanges, for security reasons and it doesn't suits my tolerance level yes I no fit tolerate am and I can't do that, am pretty much comfortable trading with different vendors, their is nothing so special trading with one exchange vendor it will only make you becomes vulnerable and prone to scams especially when you become too comfortable with them for too long but yeah anyone can do whatever they like.