The star system isn't an exact science - it's the sometimes haphazard choice of literally anyone who signs up (something like 5300 potential users - you got 3 votes) based on their own criteria without comment, their own interpretation of a 5 star rating, what work deserves it, close transcriptions vs creative interpretations, ease of play, alternate tunings, how the MIDI sounds, how clean the tab looks, what kind of mood they're in, how much they like the song to begin with, their personal feelings on the contributors, and about a million other variables I can't even start to think up. Under conditions like those, 4 stars is actually really really good!
Don't expect the notion of 5 star tabs to always be better than 4 star tabs to always be better than 3 star tabs and so forth to win out with precision. And if it helps, I believe there are plans to give a complete overhaul to the star system to make it something a bit more functional. All the same, I would precaution against how you compare yourself to other arrangements. You may take a lot of pride in not having "banned agreements", in having a lot of "polyphony", in not using "handicaps", executing "multiple voices", and so forth, but you fail to remember a lot of users here are causal or novice musicians who may not care about any of that. Who may just prefer the general simplicity of say, musenji's arrangement. And just as you spend a lot of time and effort perfecting your own tabs to your own vision, and then take the idea of your work being inferior to others to heart, so too may any of these other tabbers.
Personal suggestion, you may also want to consider tabbing material that hasn't even been covered yet on this site. Maybe take a look at what's being requested and what you can try your hand at.