[Note: if you have trouble commenting, please tell me via email.] I think there have been issues with the commenting mechanism on this website.
I switched back to full page comments, instead of the comment box at the end of the post. Now you comment by clicking on the link. I believe this works better for most people.
Please email me if you were -- or are -- not able to comment. My address is in the Contact me page here.
P.S. Please comment on my posts. I do not know what you are thinking unless you do.