What I think the man down under means is that spamming is annoying, toxicity and all aside. He just wants a rate-limiter implemented or something along the lines of it.
It would be useful to implement to a certain degree, such as after 5 messages in 2-3 seconds you'd be unable to type in side chat for 1 minute. It would be effective to combat the occasional guy who has nothing better to do than to spam the n word over and over again, or people advertising other servers.