From: Kornscope Komachi
Can you be a builder and not a texturer?
Can you be a texturer and not an artist?
Yes and yes though, as you noted below, it's often very beneficial to the build quality if the builder is also a texture artist; or, failing that, at least a texturer

From: someone
Added question: Do some texturers buy packs from 3d modelling web sites to use? Is this legal?
Depending on the license agreement that comes with purchase, it can be legal or not. I'm not familiar enough with Renderosity and familiar sites to answer the question directly; as to the "Do some texturers buy stuff" - one of my sources of raw material to make textures of is
http://sxc.hu - downloads are free, some images come with usage restriction. It's really a treasure trove.
From: someone
I am not an artist although I can 'do' images and creations in an image app. I can take photos, of walls and windows and household items for example, and chop 'em up and make nice pieces in the image app and I can create similar from scratch but I'm never going to be an artist, no matter how much I learn or try.
I started out in SL with only the most minimal knowledge of GIMP - I could crop an image after 10min of fumbling with the menus. SL gave me the motivation I needed to learn using that program, learn the basics of digital image manipulation etc. I'm still a far cry from "texture artist", but I would say that learning to make or at least manipulate my own textures has strongly increased my build quality.
Taking your example for the household item - making a prim into a washing machine from photos you took yourself might not look like an impressive feat - but I've seen so many textures of similar items that were badly cropped, not aligned, had some stray alpha marks etc., that a well-done washing machine is something to be proud of.
Or, if you think about houses and shops and other architectural structures: texturing them with the generic brick, roof, wood texture will look nice enough, but still be somewhat flat. Adding a little shadow along the edges might not sound much like art, but it will make the house appear more 3D, less flat. Now add a little bit of grime on the bottom, maybe a bit of moss on the wall or adding a photosourced stone trim - et voila, a bit of patience with the clone tool has turned a generic brick wall into a lived-in, real brick wall. Those are rather simple texture manipulations that can greatly enhance a build.
From: someone
This was brought on when I visited Kennedy House at Republic Bay in Plush Altstadt. Seems a very nice build. Please point me to the BEST of the best you have seen.
I want to feel even more inadequate.
Two builds I visit every time I want to feel inadequate (and gather some inspiration) are the sim Sanctum Sanctorum, and castle Ulrichsburg on the sim Frisch.