Currently I'm pestered by notifications about resolving my closed market https://manifold.markets/NiklasWiklander/what-year-will-the-majority-of-new even though it may not be resolved until january 2030. I will probably resolve N/A just to not having these email and on-site notifications keep bugging me every week for the next 7 years.

This could be avoided simply by having the possibility to set separate dates for close and (estimated latest) resolution.



Why would I not want to allow people to bet all the way until resolution?

Because I like the prediction part of prediction markets more than I like the "last minute huge safe bet" part, where people can make big bucks (well, fake bucks at this point) just by being quick to bet on the correct option after the fact but before the market maker has been able to resolve the market...