WoltLab/com.woltlab.wcf.user — comment on commit 05ac96f8ed559039dab923d9ad0884e6ead48a0b
File: files/lib/data/user/avatar/Gravatar.class.php line 74
By TimWolla:

What about changing mystery-man to WCFs avatar-default by setting &d=404 which throws a SystemException?