Where it really becomes an issue is when they find it so offensive they decide to break things. For example, a function was added to the Debian Buildbot packages so that updating the packages would artificially fail if it detected the worker basedir was in the slaves directory (which used to be the default). Forcing everyone using it to figure out what was wrong and move the directory. Because the Debian project apparently found a file path so offensive they had to ban it, even on your own private server.