
As we've had a bit of confusion recently regarding how "Mains" and "Alts" work in the guild, I've added an extra explanation into the guild rules. It is not a change of rules, just an explanation. The rules can be viewed in full, here.
The additional section states:
"Mains" and "Alts"
A lot of guild members have more than one character they enjoy playing. We currently have no limit to the number of characters a member can have in the guild, all we ask is that you ensure all of your characters are linked in the roster notes.
A members "main" character is generally the character they first joined us with. It doesn't have to be the character they play the most, or even at all, it is simply the first to join the guild. A member's "alts" are any additional characters that have joined subsequent to the first. Each of the additional characters should have a public note in the roster stating that is it an alt of the first character to join.
Should a member remove their "main" character from the guild, or rename it, then they can ask for an alternative character to be classed as their "main".
"Main" and "Alt" characters are treated exactly the same in the roster, with the same rules for promotion and inclusion in the guild and guild events. There is therefore no reason to switch which character is shown as "main" in the roster.
If you wish an alt to join the guild, simply whisper someone online in the guild from your alt, asking for an invite, referring to your "main" character name.
Please do ensure that all of your characters are linked via the roster notes. Partially because, when you reach "Wolf" rank with any of your characters, all your linked characters are promoted to Wolf Alt, and partially because characters that don't appear to be linked to an active member are likely to be removed from the guild for inactivity.
Please do note that, on occasion in the past, we have adjusted a members "main" .. however, it is becoming very time consuming and, in the case of those who change regularly, have many characters in the guild, or leave with their newly assigned "main" not long after their request (!!), very frustrating. There is no need to change "main" and it just takes a silly amount of time as far as admin is concerned, so please don't ask unless the "main" you have assigned is no longer in the guild. We use the words "main" and "alt" .. but what we're really saying is "first" and "subsequent". 
If anyone has any comments or questions, feel free to mention below.