Lin Xiao ultimately did not join a guild.
After finding a place to stay, he spent half a day intently watching the channel to see other players' interactions, gaining a certain understanding of these so-called guilds.
It's not entirely true that guilds are useless, they indeed protect you from being bullied by others, but they're not very useful either. If you don't hold a high position or haven't been with the guild for long, it's only slightly better than being alone. In the end, it all comes down to whether you are strong or not.
Once strong, you'll have status, but if I am already strong, who can bully me?
A Rank 4 Evolver stands in the upper-middle tier in the Main City, where the highest is only Rank 5 Evolvers.