It seems like the consensus of this thread is that the name isn't holding it back. That was my thinking going into it, but the article makes some very valid points such as the name (being related to a sexual and sometimes derogatory word) making it a non-starter in some organizations.

I have it installed on all our computers at work for basic image editing, but we're a small business and never gave it much thought. I can absolutely see it being problematic in a school setting, however. More to the point, Adobe has ably demonstrated: get them hooked on your software in school and you'll dominate the market. Imagine if kids had been learning GIMP instead of Photoshop all these years.

Anyway, I've got no dog in this fight. Just pointing out what I see as a valid point in the article.

Also, I like their original name possibility of IMP much better. The mascot could have been a cute little imp instead of ... whatever it is now.