Everyone with those biases will view any other distro as bad because it isn't theirs.
As a long-time SuSE and Debian user, I still like those distributions. It's just that gentoo is a better fit for me at this time. No need to bitch at the people who prefer a different distribution, if it is a better fit for them.
It is exactly this choice that is the main strength of Linux, like you say.
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