There are many reasons.Who's to blame? What can be done? Is XT on the verge of its death? I can't imagine new posters being attracted to this place and more and more old posters will start losing their interest to post here. If nothing is done I think no one will post here in a few years.
Back in 2006 XT lost its placing on google coz there were server probs. It pretty much disappeared overnight. So newbies were unheard from for years. We took the decision to be blocked from google coz the priority was to keep the members we had.
In 2007 the forum was sold to VS and moved to a new server. But it took a year before we allowed google spiders back. It was Waldo who pointed it out.
Over the next year XT didn't get it's high placing on google back. I think this really damaged the future of XT.
Also during this time VS staff were useless in making updates and changes. In 2009/10 the staff got together and thought of ways to get the forum back or start fresh. We pushed VS hard and eventually we got cooperation. Things were happening and the forum started to get back ontrack!
However, smartphones started to become popular and people started to stop using forums and moved to twitter and facebook. Or just lost interest! and there were no newbies to replace them.
Then VS completely gave up, no updates for years. Just parked the forum and forgot about it (unless they were adding new adverts!)
So I always say one day it won't be profitable for VS to run the forum and they'll just delete it! But anything can happpen.
If anyone is seriously worried they should give the owner a serious offer for the forum. You can then update it and advertise it etc. Could be a good investment if you know what you're doing.