Let me try to answer at least a few questions:
See Single Sentence Record Limit feature release.
No. We need to make sure edits are approved according to process. What do you mean by “low quality sentences” exactly?
I guess those two questions are directly connected? For the Sentence Collector as it works right now there is no way to explicitly know which sentences have been skipped intentionally. Before adding a third button, I’d definitely want to know the core problem there. Additionally for the Sentence Collector the review queue gets sorted by most votes, so we can assure that most reviewed sentences are getting into the data set. Otherwise we could end up with 10k sentences all having one vote and none of those would make into Common Voice. I don’t think jumping to a specific page has any benefit for the project due to that.
I can’t say for Common Voice right now, but for the Sentence Collector it’s 2 out of 3 votes being approvals.
If you mean the number within the Sentence Collector, hat’s for the Sentence Collector only.
Roughly every week, and these are then deployed to the Common Voice website when the Common Voice website gets a new release.
Right now no, but that might indeed be a low hanging fruit to fix. I’ve filed Show Source in Review · Issue #330 · common-voice/sentence-collector · GitHub for that.
Some of these questions have already seen some traction from other volunteers. You additionally might want to read Ongoing Common Voice & Mozilla Updates.