What is a kappa sweetheart?

A "kappa sweetheart" refers to a term used in online gaming and streaming communities, particularly on platforms like Twitch. It combines "kappa," a popular emote representing sarcasm or trolling, with "sweetheart," suggesting a playful or affectionate tone. In this context, it often implies a lighthearted interaction or teasing among friends or community members. Overall, it embodies a friendly yet cheeky banter typical in online interactions.