I don't know how else to say it, this is a really bad idea. It's spam. If you scale this up, the few IRC servers that currently accept this type of behaviour will start blocking it. You might as well be trying to use blog comment sections as k/v stores.
Spam is unwanted messages that displace what you want to see. In IRC: channels can be set to private which hide them from the channel listing. So that the server continues to operate in the same way. The software isn't doing anything outside of what is already allowed by these servers. Everything from the number of channels a user is allowed to create to limitations on expiry are already factored in to how people use…
At the very least, I can tell you that Libera would define this as abuse and actively remove it. Our servers are for users to chat, not for software to communicate.
And to clarify on spam, this takes resources from the target of a given network. If that networks target is to be a platform for software communication, sure. But in general, IRC networks are there to relay chat, hence the Internet Relay Chat name. This kind of thing takes processing power away from users, and increases memory load on the server. Not to mention bloating it's services database.