I take it you've never heard of xkcd then, or of a point not necessarily applying to the person who is making it.
Now, not everyone is actually mentally stable. The point I was trying to make with that quote (which is from a rather popular web comic, by the way) is that words can carry real weight with them. Some jackass might simply be blowing off steam because he's frustrated, but his words can mean something else entirely to another person. There's a reason Riot bans people who say "kill yourself", and it's not because other people are overly sensitive.
Secondly what the living fuck man. You dedicated two paragraphs to telling me to man up? Next time I quote something I'll be sure to provide a link to it so no one overreacts and just about calls me a pussy for no reason. I mean seriously, that's the largest overreaction I've seen on these boards.
You're right about it being the 21st century though. People do need to grow up, but it's also not the 50s anymore. You can actually talk about what's on your mind and show some emotion without looking weak.