We’re planning a change that automatically updates login status on the forum depending on what happens on roblox.com:
This would include logging people out if their moderation status changes.
I see some people suggest that the DevForum can be used for appealing account bans. This is not correct, for appealing a ban you should follow the steps on our support form at Support - Roblox. The teams who can repeal a moderation action on your account do not monitor the DevForum for these requests.