Brick,
Sorry I have no idea what limitations Tapatalk has, was just trying to be helpful. I've seen similar comments a few times from people "ok whoever you are" and I've been able to find their name. Not every user will have a user name that identfies them clearly (most don't), or place their name in an obvious spot like the signature. (A few use another field and it shows up on the forum under other info, Norm Kern is one of them.)
But if the user puts their name in their profile it is there for all to see, at least on the forum.
PS Just FYI All those emoji things you do on Tapatalk are not coming into the forum, I often see [emojixxx] where that xxx is some number.