I tried to post a link to my f l i c k r (no spaces) picture account in a PM and the software deleted f l i c k r (no spaces) and replaced it with [bleep].
It's just to irritate you The censor routine is not exactly a stellar example of AI. Remember when the F u k u s h i m a Daiichi nuclear disaster was a hot topic?
I don't know of a way around it except copy your picture into the Gallery forum and use that as a link to your photo.