The board may behave differently if you check the 'Log me on automatically each visit' checkbox on the login page.
I assume this is how some people are staying 'logged in' - which is fine but its not strictly true.
The internet is stateless. This means that there is no open connection (like a telephone call) between you and the Blood and Fire Server, its more like a lot of sms messages being sent back and forth. The only way you are kept logged in is that each time you request a page a little identifying tag is sent along with the request. The server looks up who this identifying tag is associated with and displays the read/not read posts accordingly.
So, it may seem like you are logged in all the time, but in actual fact this will only be the case some of the time (except possibly for the hardcore baffers who are constantly posting
So while it may seem like you never actually log out - in practice you will be logged out after every hour of inactivity (which is when the little id tag is no longer valid). When you refresh the page and you have the 'Log me on automatically each visit' thing checked - you are really being logged back in.
This is all getting a bit techical, Im sorry but theres not really any other way to explain it,, it is complex!
Also you will almost certainly experience problems if you are using a service like AOL where your IP address changes regularly, Im told this can be from page to page,, but Ive yet to work out how they could do this..
Any more info?