Would it truly be fair to categorize this nonsense as similar to early 4chan? My main contention here is that this nonsense is primarily occupied with bothering other, similar websites. That's different from early 4chan, which would raid websites such as Habbo Hotel instead. However, in the past twenty years, the WWW has shifted towards requiring accounts for everything, and with much stronger banning mechanisms, leading to such category cannibalism being one of the only options for these bored little idiots. They've raided Wikipedia in the past, but I don't see too much of that anymore, and Wikipedia has basic but strong mechanisms in place that are more than sufficient to stop the vandals.