Some days ago it was discussed (here) that Gimp was forked in fact. Apparently just because some people "found offensive" the name Gimp (Something that could be seen as an obvious attempt to first degrade the brand, then appropriate as own new invention, and finally phagocyte it. Has happened before with other programs that were slightly modified and then heavily advertised).
Updated, link here: https://itsfoss.com/gimp-fork-glimpse/