The primary issue with IRC is that its design presupposes a persistent, always-on session, which is not conducive to users who switch between multiple devices. While it functions adequately on one or two PCs, integrating mobile devices complicates the experience. Although it is possible to bridge and proxy connections to mitigate this, it introduces an additional layer of management, leading some users to prefer alternative platforms. Furthermore, IRC's notification system is less robust and feature-rich compared to contemporary messaging solutions.