My favorite memory is when we opened the first ever portal after the wipe.
After obtaining the metals and tech required to travel to other planets, members of the PS guild traveled to the T4 planets and died horribly in the atmosphere. Mining all the diamond using iron hammers (to save diamond). Diamond required to make coils to build the portal conduits to get here. This took the combined effort and collaboration of dozens of people over different time zones to race here.
After this feat we went out to connect pre-wipe communities and brought everyone together as people progressed at their own speed, first building hubs on the T3 planets to connect the regions, then eventually building and funding hubs on all planets.