Anyone would think this was recently made by Toyota or something. Because google is such a behemoth (it is they who power the blogger platform) there is no-one you can email directly, but there is a forum which googlefolk also monitor, and I can see they've answered a few questions here and there. I can see no question posted about this problem per se, but there are some commenty glitches reported lately. I hope it is just something stupid I have done.
I know many of you have emailed me wanting to post comments, and for the fact that you can't, I am sorry. I would suggest that those of you who don't have my email maybe, um, leave a comment! lol
For what it's worth, I have had some of the same experiences you have been reporting. But they have not recurred every time. So far I have been able to Geek 101 around them (close it and open it again), but this is clearly an unacceptable thing. Should we not resolve it soon I'll look into a third-party commenty widget. Now that I have discovered there are such things.
And I shall post with the news.