Hi just downloaded pubBB, I have been looking for an accessible forum punBB seems to be the best on offer.
...but... its a small thing 
- the meta refresh pages pose a problem for users of screen readers. There is a strong possibility that the page will be refreshed before the user has been read the content of the page and they will not know what has happened.
If the purpose of the redirect pages is to give the user feedback then perhaps there should be an option to not refresh and allow the user to click through after the site has loaded, screen readers are not able to quickly scan the page to get the meaning like a sighted user would.
Perhaps a good alternative would be to allow an area near the top of the content on the destination page to provide feedback about actions on previous pages.
How do others feel about this, especially screen reader users.