I think you queued in on the wrong thing dude. It doesn't mean I want my welds to look like hell I just don't care if the weld rises to the level of art (which some TIG welds do) as opposed to looking just sort of OK but being strong (like my current MIG welds). If you're doing the process right any weld is going to look at least decent because inherent in the process is creating a good bead, weld pool, and join between the two materials.
In any event, almost all my exhausts end up wrapped in exhaust wrap anyway - or at least the manifold and downpipe sections. So it will literally be impossible to see no matter what I do.