Welcome to Subeta! Looks like you've made great headway on your own already, and had most of your questions answered
I think in addition to the points already answered
Battling - The battle forums has a thread called Battle Chat, which has a lot of the battling 'regs' who are happy to help out and give info if you stumble into particular questions c:
Guilds - We have forumgroups (formerly known as Cults), there are some older established groups around (off the top of my head Kindred Spirits, Menagerie, Wizarding are well established groups), and you're not limited to being in only one. Some of their activity will not be visible on their recruiting thread, because forumgroups can opt to have a private board visible only to the group members. For example I am in a group that isn't actively recruiting, so we don't even have a board on the first page of the groups board, even though we have active members daily.
Besides that, there are also a fair few 'Chit Chat' groups under Small talk, these are pretty relaxed social groups where regulars hang out without as much direct focus or event generation as perhaps some of the forumgroups have.
If you still have any questions, don't be a stranger!
Useful Links:
What to do on Subeta? FAQ Useful general information for newbies Customise your dashboard Useful Custom CSS Builder Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)
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