Ok, here's an update:
Most of the guesses are wrong except DeepSeaDiver's comment "the admins have been very busy based on the recent industry unrest". It has always been a bit of a balancing act between managing the homepage and the forum and the job section pretty much took care of itself.... but... in recent months with countless mariners out of work, the job board has required more of our attention.
The larger problem is that the software we are running is antiquated and no longer updated frequently updated because most new websites are choosing free options or forgoing forums altogether for social media sites like facebook. We are considering moving to free software as well but not because of the cost but because, despite being free, it is much better supported.
The other problem is our growth continues to grow at astounding rates. The level of new active members is not up significantly but the number of readers is. This puts a strain on the software and our server. The rest of our website runs on the cloud but the forum remains on a physical computer at Rackspace. We'd love to migrate this forum to the cloud but none of the reliable cloud hosting services will support it and we do not have the technical knowledge in-house to make this transition.
Years ago we invested a considerable amount of time and money hiring a company to developer the android and iphone apps. About a year after they were built the developers team we hired was acquired by a much larger company that was not interested in supporting small forums like ours. So they dropped us. The android app stopped working immediately and the iphone app continued to work ok but we have no way of updating it. We have looked into rebuilding the app but have not found a solid development team that's willing to work with vbulletin.
So, as we have stated in the past, the iphone app is currently unsupported and use it at your own risk.
And to answer the most commonly posted and emailed question: we have reset, rebooted and cleared the cache on our server many times.
But the largest problem is that the forum software is working fine on all our computers and for most of the members. We do believe that you are having serious issues but these issues have been difficult to recreate on our end.
Lastly, there are other significant problems with the underlying software (one service provider we use, VBSEO, has gone out of business) that have required a significant amount of our time in recent weeks/months to fix. Problems that you don't see because we are on top of them... problems that, if not addressed, could stop the forum from working altogether. We've managed to fix these problems but it's taken a considerable amount of time.
The best solution we've found for moving forward is to migrate this forum to one of the free forum software solutions like Buddypress. (Again this isn't a matter of cost... it's a matter of getting reliable updates). Why haven't we done this already? There are three reasons:
1) There are thousands of post and user that need to be transitioned. This is a big job.
2) The last time we changed the design of the forum my phone and email were inundated for weeks and none of the messages where positive. And all we did that time was alter the look of the forum... we did not eliminate or change any core features. Moving to buddypress would change everything.
3) The new forum software works better mostly because it's bare-bones. Many features (like PM's and advanced spam filtering) would be eliminated.
P.S. We are open to other ideas!... but "reseting the server" is not one of them.