[xraystyle]

When someone accidentally announces an incorrect prefix, they're pretty up-front about it, and try to correct it as soon as possible. It's not something you really see that often either, as you don't change the prefixes you announce very often. Really only when you acquire new IP space. Otherwise, the router config is largely set-and-forget as long as the peerings are up.

So if someone does fat-finger a prefix announcement, it's followed by an email to the IX mailing lists and transit providers with an apology and a quick fix.

It starts to become apparent who made an honest mistake here and there and who's acting maliciously.