This past year I've had a lot of problems being able to post on blogs. I don't know what changed, but blogs I've previously commented on, I'm no longer able to do so. I've researched it some more this morning and found out something that I hope will help YOU if you have had problems commenting on MY blog. And if others change it on their blog, maybe I wont have problems anymore either :)
This is what I did: In Settings, under 'post and comment' I changed mine from "Embedded" to "Pop-up window". And now I can post on my own blog, which I haven't been able to do lately.
So if anyone was having issues commenting on my blog, I hope this helps you all out. I am hoping that now even those of you that don't have a Google account, can now comment again (try it for me Sis, please!).
Have a great day all!