Problems Commenting??

I have heard from a few people that the blog isn't letting them make comments. So I asked everyone on facebook for some help with this. The suggestion came back that you must have a google or gmail account of some sort to comment. I use my hotmail account to log into google and blogger and haven't had any problems ever commenting on a blog. So for those of you who are having issues with this, try that. It may let you log in with a yahoo account, but won't let you comment. I'm not sure why but just a thought! Let me know if that works for you!