Here's my concern. Let's say I forked a repo and started contributing to it. I built an app that depends on that repo. Suddenly that repo vanishes because GitHub found it some word in it offensive, and my fork and all my contributions vanish. All because of some line like:

var x = getX(); // this is retarded, needs fixing

I didn't write the said offensive code nor did I even know it was there, and GitHub possibly doesn't even tell me why the repo was deleted. At this point my trust with GitHub of keeping my code is safe is broken. When users lose trust in GitHub or feel they've gone big brother then users will jump to newer, emerging alternatives.