I've noticed that over the last while (month or two), when browsing BC not logged in, "http://cdn.static.zdbb.net/js/walker-min.js:1" gets loaded, and does not function properly. This freezes the entire browser temporarily; eventually a prompt comes up asking if I'd like to stop the script. This issue doesn't occur when logged in on BC, and therefore I assume it is related to the advertisements (which aren't present when logged in). This issue does not appear to be on my end, as I've tested it under both Pale Moon and Mozilla Firefox on 2 different computers. I've posted here, because I'm not requesting support, I'm just reporting it.