Visitor messages have been disabled so you can no longer post a message on someone's profile. They attract spammers and it often goes below the moderator radar. Most visitor messages contain information that should be posted in the forum anyways.
If you would like help from a particular member, please post in the forum and send the member a personal message with a link to the forum thread. As always, only posts in the public forum can help and get input from other members.
