It seems that having 'upgraded' to Beta Blogger, those who have an ordinary Blogger account can no longer post comments on my blog. Likewise, I cannot post comments on non-Beta Blogger accounts.
This is annoying as I have tried many a time to spread a little wit and flippancy only to be informed at the end that my words of wisdom are not accepted. I'll never get those minutes back, you know. Wasted for all eternity.
So, now you know why you might be having trouble posting.