What would make this better, like you said. Text-based format. Would we somehow be able to send models and scripts over? This would make making Add-Ons from more than one person more easier.
I'm not able to understand what you were trying to say, so I'll just assume that you think text-based format will somehow allow the sending of add-ons.
No. The only thing stored as text-based in Blockland is saves, configuration, scripts, descriptions, and colorsets. Out of those 5, the only one that seems useful to send is saves. Scripts and descriptions usually need models and/or textures. Configuration is a bad idea and would not do any good. Colorsets... why would you need to send them?
It's not like you can convert a .zip file into a format that can be read as text by TGE and send it over.