After writing my previous post above it hit me that a great feature would be a search tool that searched and sorted systems based on stats that were some number of months old. For example if “The Grid” had a setting that allowed you to search for systems with various statistics at a point 3 months ago (or 6 months or whatever) you could see exactly what waiting for a number of months after a search shows you. It would be eye opening to most people to see all the systems that were highly rated but didn’t continue performing. And it would help identify systems that have continued to work without having a waiting period yourself.
Such a “delayed” search would still have selection bias as you would still look through the list and select out the best performing systems, but I claim such a search would give unsophisticated users a MUCH better chance at finding systems that actually worked than a search on real-time data. Subscriber success would probably increase measurably just from that one simple change.