It is often quipped that people from different countries tend to behave differently. That being true in IRC, too. Now, I made up a list of how stupid people can be. The list is incomplete!
Poles are the usual pestilence of the IRCNet world. They usually herd in flocks, and join channels in groups, never alone. After joining, they mutter something in polish that is far beyond anyone's comprehension... and leave. Might it be that they're organizing? They're known to be takeoverers, spammers and advertisers. And idiots.
Germany, being the most populated country of Europe, spread their humanoid monsters widely accross every known network. The users slither on channels and their usual and ask something like "deutsche hier?" ("any germans here?"). That is because most people — stupid germans — assume that germany is the very head of everything, and people speak german everywhere instead of english, whilst the truth is completely different. Either way, they don't care, and speak german.
So, usually they're answered something like "english plz" and they obey — or not. If not, they would be kickbanned and would join from a different host, proving their utter leetness. Spammers, takeoverers, idiots, advertisers... everything. Mostly mindless idiots, though. Remember — only a dead t-dialin.net user is a good one!
*** cretin [email@example.com] has joined #fools * cretin CIAO A TUTTI!!111!1!!
Seen this, especially in IRCNet? If so, you've been introduced to another type of IRC-idiots: italians. Although not so dangerous like the other types, still, they're annoying. Mostly they join and utter a friendly, yet unwelcome, greeting, in colors. Harmless, yet annoying as hell.