Guilds, some things I've pondered about.

Back when guilds started I was in Illuminati, which was formed by a friend (and I like the name). When it disbanded, I used my then-mule to start the guild "Rock" which was only ever for my own characters, and some friends who play very rarely. My Paladin has also spent a significant amount of time guildless, as well as some other friends guilds for shorter amounts of time (Deviant and Vive, and another I can't recall the name), though currently it's in Xqsite since being guildless gets you pestered to join random guilds.

Hermit has pretty much been in friends' guilds the whole time. DK is the leader of "Rock" so it just does that.