I see guilds constantly fighting for new members in chat, bragging about having banks, banners, and even the numbers of their active players. They all want you to join them. You can join multiple guilds, which is a great way to expand your resources for finding dungeon groups, but you can only represent one guild at a time. This means you can only gain influence for the guild you represent. Guilds have started to fight for that, by offering weekly prizes in a drawing where only representing players may join.