[landave]

I don't know. If you are not already familiar with the inner workings of bitcoin, it seems to me that a simple computation power secures the transactions is not really helpful. What does that even mean, to secure the transactions?

Essentially, for an article that is aimed to such a wide audience you need to find an appropriate simplification. Such a simplification will never be completely accurate. Therefore, I consider anything appropriate that is technically not wrong and does not create more confusion. For example, describing mining as a process of generating bitcoins would probably satisfy those requirements (ignoring transactions fees).

I agree that it would be nice to be able to explain what the real purpose of mining is, but I don't see a really good way to do this.