I think this forum needs the ability to post pictures more conveniently. Activating the use of the [img] tags should help.
Any reason why this function isn't activated?

Yes, it's annoying
I tried to change my signature, but it doesn't work....

[img]http://imagegen.last.fm/lastfmblue/recenttracks/5/paulvangelderen.gif[/img]

Strange, because I noticed other people who have a picture in their signature