Just what is the point?
Would someone really try to visit all of approximately 24733040147310453406050252101964719003513134910121 18399140630560928972251065318671703164010612430449 89597671426016139339351365034306751209967546155101 893167916606772148699136 planets in Spaceway, just because a site gives points for that?
Looking at how fanatic kids seem to be about score lists nowadays... yes, that actually sounds plausible. I doubt that spaceway would gather a large enough fan-base to really make it count, and I generally don't like this skinnerbox approach to game design, but Spaceway would provide ample opportunity for achievements...