I have had trouble tagging certain people in the community. @Mike_Mitchell is one of the ones I tend to remember as I seem to want to tag him more often than other names that have the same issue. Mike is however not the only one I am experiencing this with. I have attached a screen shot of the problem as I see it. Most of the time this works perfectly fine. Just a few names never show. It would be nice if Jive would convert "@knownname" to a tag or have some other method so I could tag when replying by email.