Telegram makes it very easy to create a bot. Other systems are either inconvenient or actively hostile to new bots, especially if you're not a well-known business.
Probably easiest way to get started today with something like that, agree. IRC is also very nice for it, and stupidly simple protocol even the dumbest LLM could interface with, trivial to host your own server too if you don't want to use existing ones with private channels.
