What's in a word?

Why do people keep making up words or phrases that actually obscure it's true meaning? Why not just come right out and say what you mean ... instead of showing how clever you are by making up a "new" word to say the same thing? Here's an interesting list of Banished Words for 2005! On the other hand, here's a list of Words of the Year going back to 1990. Some of them are pretty clever and a few have become mainstream.

So, what's the word for making typing errors, such as typing "seom" or "form" instead of "some" and "from"? I tend to do this quite a bit ... and notice others do as well. I've called it "typoglycemia" ... but that doesn't quite fit! Maybe something like "typolexia"? But then ... I suppose it doesn't really matter! Take the following paragraph for example. Despite all the errors, you can still read and understand it!

I cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdgnieg. The phaonmneal pweor of the hmuan mnid. Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoatnt tihng is taht the frist and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Amzanig huh? Yaeh and I alyas thought slpeling was ipmorantt!