|Funny; we've got a very similar thread going on over on the 'Volume Pedalers' Delight' mailing list...|
Yeah, as a multi-instrumentalist I've always shied away from descriptive labels UNLESS they fit the occasion. For example, back when I was touring with a band, I had no problem being referred to simply as the lead guitarist. These days "composer" is more accurate. The only times I've ever specifically called myself a "looper" have been when performing in a context where looping has been the common thread of all the artists on the bill; most of those shows have been in the company of other members of this list. But while looping is to some extent an element of most of the different musical contexts I find myself in, the methodology varies, as does the level to which the looping is integral to the final sound.
On the other hand, my wife often calls me a "looper". Unfortunately she's not talking about music, but rather to her perception of my alleged habit of repeating myself in conversation.... Okaaaaay.