There's a difference from what used to be a good chatbox downgraded to shitty microsoft adware with ads to something actually good.
Just look at this interface, it's beautiful.
if you even remotely like yourself, do yourself a favor. Moving over is basically seamless. Only thing you could want to keep skype for is chat log but even then discord doesn't keep it on your computer but on the cloud unlike skype, so switching from Phone to PC, you won't lost conversations.
majority of skype users I know have moved onto discord, I'm really surprised people are being stubborn about this.