If so, then there's no reason to be.
While those of us who enjoy playing in those threads like to work on images actually taken by the hosts, there's no requirement in either thread that you have to provide images you've taken yourself. So it really doesn't matter if you haven't taken any pictures recently, or even if you don't have a camera - neither of those reasons prevents participation either as a host or as one of the Artifiers or CE'ers.
I haven't been taking many pictures on my own, so for the last year or two I've been using free stock images from a number of sites. It only takes a few minutes to pick out some images and voilĂ ! you've created joy and happiness for both the participants and the viewers - and, dare I say it, a little bit of peace in the world. What could be better than that?
Remember, too, that even though you are the host of the thread, there's no requirement for you to participate in the actual work on the images if you don't have the time or aren't inclined to for whatever reason. We've had a lot of hosts who have just been kind enough to post images for everyone to work on.
For those of you who may not be aware of the sites, here are some that I use:
TurboPhoto: »
www.turbophoto.com/Free- ··· -Images/stock.xchng: »
www.sxc.hu/homePhotoRack: »
photorack.net/index.phpstockvault: »
www.stockvault.net/So the next time Hank (for the Artify thread) or one of the CE participants sends you a PM asking if you'd be willing to host, please don't brush it off. If you can spare a few minutes to help out, it would be greatly appreciated and will continue the great community spirit of this forum!