The rules should be decided before the site goes online, and be changed very rarely. Enforcement should also be to the letter, which ain't what happens on SaidIt. Folks have to know what to expect.

Agreed. That's why I keep talking about a constitution or manifesto with unchangeable immutable fundamental goals. No matter how much the leadership or community change there will always be the original mission statement. Rules and guides may come and go, ebb and flow, and evolve, but they should always abide the fundamentals.