Also gcc and Apache

The egcs fork of gcc was so successful that the original maintainers handed
over the keys. Apache was an NCSA httpd fork, and was, of course, wildly
successful.

I doubt that Oracle would abandon the MySQL trademark if one
of the forks became more popular, but I'm guessing the fork won't have a
huge problem establishing an alternate brand.

It's almost impossible for me to imagine how neglect by Oracle would *not*
result in a successful fork of MySQL.