If Lin Yuan wanted to create his private faction—apart from the wait for the Floating Island Whale to hatch—he would have to build a sky city on the back of the majestic giant beast.
At the same time, Lin Yuan had to establish his faction's territory on Star Web.
To a certain extent, Star Web was already considered a second world in the Radiance Federation. In fact, more things could be accomplished on Star Web than in reality.
It was due to the massive size of the Radiance Federation's map. Even with a Diamond fey, it was difficult to travel between two major cities. If it was to travel between the southernmost city and the northernmost city, it would need at least two months of journey.
Therefore, it was actually the most convenient for matters that weren't very important to have the negotiation and trade on Star Web. Matters like the application to set up a guild club could be easily done at the Guild Alliance.