For the time I have been visitng the site, I have opened it up first thing in the morning in my browser (Vimprobable) and then, periodically throughout the day, reloaded the page to see new questions and answers.
Some time over the last 24 or—so hours, I have noticed that if I reload the site once, it sends my CPU to 100% where it remains until I close the page.
Is this a bug? Nothing else in my setup has changed.
System details Arch Linux. Vimprobable2 0.9.12.0 libwebkit 1.6.3 libsoup 2.36.1
Edit: This behaviour doesn't happen on Stackoverflow...
Edit 2: I have (I think) narrowed it down to the ads that appears in the sidebar (Love Your Community etc); on some page reloads, the ad is blocked and that is when the CPU spikes.
I have been using privoxy, but this domain is listed under both 'fragile' and 'allow ads' - so the ads should be displayed at all times AFAIK. [Hypothesis discounted...]
1. Technical term...