Hello,
Thank you for your kind words.
The CoinPayments platform has a fixed number of confirmations that it looks for in each blockchain. These are listed here: https://www.coinpayments.net/supported-coins
Once that number is reached for an incoming transaction (i.e. deposit), then the platform informs the plugin that the deposit is confirmed, via an IPN of status 100. So the plugin does not actually use the exact number of confirmations, but only whether an incoming transaction is considered confirmed by the platform, or not. If the plugin were to use a different threshold than the platform, then you could run into a situation where a deposit is considered confirmed on the CoinPayments wallet but not on your plugin, or vica versa. This is generally not desirable.
But more importantly, if you believe that the amount of confirmations that CoinPayments looks for in a coin is not safe, you should contact them. The values they use look sane to me for the coins that I am familiar with, but I could be wrong.
with regards