My inbox is full of emails regarding the problem posting on the BNA Forums. Thankyou Here is what I know about the outage and problems posting.
Forum offline at 12:30 GMT + 8 SQL ERROR [ mysql4 ] Too many connections 
From about 4:50pm I started receiving emails and this problem has been fixed at 11:20pm - 6 hours 30 minutes posting caused an error.
I did get this email from the host:
Digital Pacific has discovered a major fault in one of the UPS units and will be performing an emergency power operation in DC tomorrow morning (October 14th 2009) between 6:00am and 6:30am.
I have no idea whether there is any connection however what has happened is that first the forum (and entire site) was offline due to too many connections. This is not the first time and has been highlighted a few times however I can't track this further and the host doesn't know what is causing it. catch 22. The second issue is that somehow the database has become corrupt (hence error messages when posting). I was able to run a repair and fix it - and feel that the error has a connection with either or both of the afore mentioned problems.
Sorry it was not possible to resolve sooner - I wasn't online.
I am now looking into solutions so that these problems don't plague us.