Not really sure. Never had that happen in any group I belong to...
The effect of unbanning someone from a group

When a player is banned then reinstated they are no longer able to participate in the vote chess games that they were active in previously cuz its like the player has been removed.
They can still post in the notes and join in team matches though

Do they have to rejoin the group in order to post in the Group Notes and forum threads? Or as soon as you unban them, are they reinstated as a member?

If they are banned then removed from the group yes they need to rejoin the group but if they are just banned then unbanned as far as I am aware they don't need to rejoin

That's interesting. That's different from how Yahoo Groups does it. There if you unban someone, they have to rejoin the group.

Every time I see this heading I think I'm reading "The effect of urbaning someone..." I really need more sleep. Maybe new glasses.
lol

yes you have to rejoin to participate and how do you unban members (not from groups or anything, just normally)
When a player is banned from a group, and then unbanned, does that person have to reapply to the group to participate in group activities, or are they automatically reinstated?