Please do not quote the exact previous posts. It is redundant.
I like the idea. I like the idea of allowing to report on every scheme but we should have regulated schemes. There are more than 4000 schemes on TUS. Many may be duplicate or have very tiny changes. Allowing to report on every scheme just creates duplicated/unnecessary standings. Instead we should regulate those schemes. A group of people reviewing the schemes and mark them as "league playable". So ZAR roper would be qualified and it would be a separated scheme from W2 roper or the official roper. (all 3 can be played obviously) But 2 versions of TTRR will minimal changes should be marked as one.
I don't like combining any scheme selection and TUS has to calculate a custom standing for you. Why should you be able to select BoomRace with Hysteria to see a standing? What's the point? Standings is a way to show how the competition is going on. Now every player can find a custom standing where they shine. It reduces the quality of the competition. (Pre-Curated Filters sounds OK)
Back to the main idea: If we take this rout, I would like to suggest a better system based on your ideas:
We set a period like 2-3 months for the league season. Only one league. Then we let players to play their favorite schemes. After the season is done, TUS system checks for top 8 played schemes based on number of participants. For example if 2 players play 100 Team17 matches, the popularity number for Team17 would be 2 but if 10 people play 50 BnG matches, the popularity number would be 10. So after picking up the top 8 popular schemes, the playoffs would be set based on those.
The cool thing about this idea is that it allows any scheme to become popular. It's like schemes compete to be in playoffs. If in a season, WxW is played less but Darts becomes popular, Dart would be chosen to be in playoffs. If someone creates a new scheme and they are worried the scheme is not getting enough attention. Now they have a chance to play it in league and try to raise the popularity of the scheme to be in playoffs.
So far so good but there will be flaws. Will this system kill some oldschool schemes? TTRR requires lots of practice. Can TTRR hold popularity? Does this system drop TTRR?