I am fascinated by the polarizing nature of Homebrew on HN. I've used both MacPorts and Homebrew, and I think the only reason I switched to Homebrew years ago was that Homebrew didn't try to install stuff at a system level, which felt more in line with a package manager that wasn't integrated into the OS.

But I'm sure MacPorts is fine still. Why are people so strongly opinionated about this, particularly on the pro-MacPorts side? Nothing I've seen in the comments so far jumps out as an obvious source of the passion.