Let's stop bullshitting, nobody here is going to contribute to Gentoo and is now put off because of this policy change.
What we're looking at is mostly JavaScript monkeys who feel personally offended because they're unable to differentiate criticism of their tools from criticism of their own personal character.
I suspect most of the people upset by this are the sort to dump a pile of unreviewed slop on the maintainers & get upset when it gets rejected, i.e. they're the problem this is aimed at fixing.
It isn't though. This is just noise. It's a good conversation thread for HN, but it has absolutely zero influence on Gentoo policy.
The only way it'll be revisited is if active Gentoo developers and/or contributors really start to push with a justification to get it changed and they agree to revisit discussing it again. I can tell you every maintainer has heard the line: 'I would have contributed if you did X thing'.
how would they know? - this is (one of) the ways for people to let them know