Do you see my comment in the following screenshot of a typical Blogger Comment box?
Just in case you can’t, it says, “I can’t believe how stupid I am.”
Follow the red arrows to see why.
They point to the bottom right corner of the box — to that thing you can grab with your mouse and drag to make the box longer.
Yup. Stupid. Been making comments on Blogger for almost seven years and never noticed.
EDIT: On second thought, not all blogs have this. I think maybe just the newer ones. So, maybe I wasn’t completely stupid to not notice. OTOH maybe I was completely stupid to not click around a little more before I posted. 😉