Never heard any of these meanings of "blender", which one comes up for you?

https://www.urbandictionary.com/define.php?term=Blender

Sorry lol, it’s apparently a strictly German expression meaning someone who’s all show and no substance. It was late and I got confused there for a second. Anyway, the point on Gimp stands. Although to be fair, a rebrand would hardly do any damage given how deeply unpopular it already is.