Part of the problem is users getting frustrated with forum spammers for seed bonus points, people frequently posting in the wrong sections, etc.
Another "problem" is that due to the global nature of the site, there's a lot of differences in the manner of speech. Countries like Germany have a very matter of fact way of speaking, while others have a very flowery way of speaking. There's no offense meant, it's just what it is. People don't stop and think about it but react based on how they would speak, not how the other person might speak.