Some of you have noticed that as of about 2 days ago the site has been rejecting most attempts to post comments, etc. Also blocking any attempt to TELL US that we're blocking the comments. With some of the site hosting imrprovements we've made, our spam blocking software has gotten quite a lot over-zealous. We're working on that and should have the immediate issue fixed, so you should be able to post comments, etc. again if you're not logged in to the site. Sorry for the issue.