The basic idea would be - don't submit directly. First submit to the community gatekeepers, they will look over your work, and if they think it will meet approval, they'll pass it on. Otherwise they can give helpful feedback. They can have strong standards about how contributors are treated.
This extra step can be optional - if you don't mind rough treatment or are confident of approval you can skip it...
The result: less work for existing gatekeeper(s) without changing their process, more friendly and helpful interactions for contributors, and no slowdown if you really know what you are doing.
Of course the cost is that people need to volunteer to be that secondary gatekeeper! (and have some tough skin when interfacing with the primary gatekeeper)
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In an ideal world everyone would have the skills and interest to efficiently be pleasant to everyone else while vetting infinite code. But in this world of finite time and not everyone having every skill it can make sense to have some more "division of labor".
That said - I'm very curious if there are aspects of this that I'm missing that make this perspective insufficient.