I agree with the sentiments though having been a subscriber and only receiving one issue in 2011 and maybe two issues the previous year, I think my subscription has got to be still good for a few years to come at this pace.
I like the Crusader and appreciate finally receiving an issue (always a few weeks after everyone else gets it in the States). However, I think the format needs to be changed. Instead of trying to do a regular publication ... be it monthly or once every 4 months or just whenever they decide to do one, change it around.
Release just *one* journal per year. Beef up the page count a tad and put in some optional stuff people can use. Instead of releasing the 0.99 cent PDF adventure, put in the Crusader Journal. Continue to accept the submissions which will start flowing again if people start talking and getting excited about the journal. Charge a heftier price for the journal but cut down on some of the adverts (aside from TLG's core adverts) and focus on some interesting content that won't make into a regular product. For existing subscribers, consider what's left over in their subscription plan and take what's 'left' and enroll them into the new journal model (even it it means fewer journals than magazines since the journal will have more content anyway).
I don't typically keep the magazines, I hold on to them for a time and then part with them. I do keep all the PDF's though. However, I'd be happy to put these annuals on the shelf and I think it could work.
In the meantime, I'll echo what Josh had to say and just repeat -- Domesday.
The next one will be out before the end of this month so it's something. Hopefully the rest of the community will like it and we'll be able to grow some interest all around for both this and the Crusader once more.