Hello,
Just a heads up, I’ve noticed a couple of times that the forum favicon for Sitepoint doesn’t show up? I’ve tried Google Chrome, Firefox and IE but no favicon displays. I like to navigate my tabs by looking at the favicon most times (quickest way for me) but with it missing I can’t do this. Hopefully it can be fixed 
Weird, I see it just fine…
Maybe try loading it directly in case it is a cache issue:
Oddly enough, it shows fine for me on Firefox, which I normally use, but not on Chromium or Epiphany, which I’ve just tested. I can access the favicon direct, but it doesn’t display in the tab.
I don’t get a favicon for the forum pages (under Chromium on Linux) either.
This is the favicon that’s linked to from the forum pages:
http://www.sitepoint.com/wp-content/themes/sitepoint/assets/images/favicon.ico
but I get a 404 error if I try to browse to it directly.
There does however appear to be a favicon at sitepoint.com/favicon.ico
Edit: I do get one showing for the main SP site though.
I have the same problem and think it can be fixed if a new theme is selected but unable to find where to change the theme 
“http://www.sitepoint.com/wp-content/themes/sitepoint/assets/images/favicon.ico”