by Carl » November 4th, 2016, 9:43 pm
It's because of a new anti-spam plugin. I got a lot of weird things like that updating my profile too. You're probably going to have to use a different site for your signature image, because I always ended up having to remove any urls with the apparently blacklisted domain names. Which, by the by, tumblr is also a blacklisted domain, apparently. Deviant Art works though, I've been using my stash there for some things. And of course MLK's own sig uploader works as well.