Here is a post on MEF where there is a bare URL, sorta.  A couple of users on MEF and FF never fail to post links that do not "hot link" automatically.  Normally in the past if I edit the message, put the cursor at the end of the link, and hit the space bar, the URL always becomes a hot link.  This has always been the case, without exception that I can recall.  I even know some members post this way usually--this member in MEF and Harvey Wilson in Firearms.   

I can fix these easily but I left this one untouched just so you could see it.