People expect something substantial its not complicated, look at the community goal at yembo its almost an insult to our intelligence it is literally the simplest possible method of implementation and even then It wasn't thought out to any degree you'd be better asking what went right rather than what went wrong.
To be honest the only reason it was fun is it jammed so many players into one system that we all had something dynamic to do, (deal with other players not the community goal

)
Just to summarise they convinced traders to run hundreds of runs to the same station, making less profit than anybody with a two way would actually make, with a competition automatically skewed towards bigger is better, with a miniscule reward, an enormous contribution requirement and a global reward that appears to make no sense (5% off fuel.. what?) all so that a station could "magically" appear instantly in a system, instead of being built like i'm pretty sure it was advertised.
Like honestly if yembo never happened, nobody would have noticed the difference, the only success in the whole thing was the traders who got excitement out of being pirated, the pirates that got to be lazy finding targets and the bounty hunters who knew where to find people for once. All 3 of these had nothing to do with the goal other than being herded to a particular system.