I would ask you "Why not?". We have a little bit of background (ok ok.. some of us more than a little bit). We need this information because information is power (hmm.. where did I hear this?). Nonetheless, as Samuel McChord Croters said: "The trouble with facts is that there are so many of them." Thus, we need to get them all together and filter whatever is not relevant/interesting. It's too much an effort for just one person, but we are many. And we come from a LOT of countries, i.e. more languages to cover. We also have a little bit of free time (yes, I am ironic). Plus, blogging is easy.
So.. Why not?