Well, I use the K2 UserExtended Plugin and this is what it´s looks like, when I added my "social profiles"
Hovering the Twitter Button, there is a HTML Tag shown in the alt-Text <strong>
What´s wrong in this case?
Another idea of myself is, is there a way to add Social Sites to this Plugin, like XING. I´m an ambassador of XING and would like to show my XING-Profile in the extended user field. It would be nice, if someone know a tuorial or could post it here.