Is this not the same as 'cripple'
If I call you a cripple, that's an insult, if I call some software crippled, that's acceptable?
The first definition I got btw was "A limp".
I don't know if you're a native English speaker or not, but one letter in this instance can make a big difference. The context is subtle but very different.
I am (literally) a native English speaker, gimp isnt used much in the UK, as I said, I associate it more with gimp masks, so I'm trying to work out if it's a legitimate grievance, or if it's someone being overly PC for humours sake.
Also upon rereading my comment, I hope it didn't come across as condescending in any way, I didn't mean it to but it does line of read that way.