Heh, I did this by accident as well. I scrolled the page, tried to click a thread title, but my browser was having a bad day and scrolled some more just as I was clicking and I hit the "mark all forums read" link. Kinda bothered me, but it's not the end of the world either. I don't know that adding a confirmation to it would be good, that would get kinda annoying in it's own right.
I was hoping to go somewhere useful or fun. I was bored where I was. I didn't read the link text and I'll probably stop doing it when I learn the software, but the intention of this software seems to be that it doesn't need learning - so trust issues there
People click randomly all over the place on the internet. At least I do that.
They are busy and in all fairness it looks more balanced the way that it is compared to any other layout... Though I do agree it does need work... I use the What's New a lot and on my site would possibly even go as far as making it an tab of it's own to make it more prominent.
If you're fancying it up, that makes sense. I'm not convinced that a confirmation dialog is the right answer though. The link should be located in a place that doesn't warrant confirmation. Right now it needs one because it's so easy to mistakingly click. If you put it somewhere that was a little more difficult to click, then a confirmation dialog would not be necessary. The "Mark All Read" link is far away from hotspots in all other forum software I've seen. Not sure why it's the #1 link here...