Above reasons are true and reasonable. WvW, PvP, PvE, time zones, Family, farming guilds etc,.. I would also love to see it possible to join more than 5 guilds. Perhaps 10 or even 20. Another reason is the ability to use multiple Beetle tracks made by other guilds, more often. There are thousands of tracks out there that could/would be shared which would help the community. More racing and communication.