Probably cause you just pasted the url, thinking the forum would auto-parse it (which this forum would have, but didn't recognize it as a url), instead of typing it like this:
<a href="http://s1294.photobucket.com/user/Ryan_Li/media/GLITCH_zps9a215e14.png.html?filters[user]=132447056&filters[recent]=1&sort=1&o=0">like so</a>

where the result would look like this: like so