I have found an issue, at least it happens with me.
Some of my photos were taken with a setting on the camera that includes a lot of detail. The result is that it takes up a lot of space and when posted here on the forums, the image would at times be squished. I discovered today, that this only happens when I edit and post image links while logged in through Internet Explorer.
It doesn't happen through Google Chrome.
Also, in IE, it's very easy to delete a photo when editing. In Google, it just doesn't seem to work.
So, today when posting to my restoration thread, I went through the laborious task of editing out my squished images in IE and then logging out and going into Google to repost to get rid of my squished images.
I mostly use Tapatalk on mobile to easily post images (they host them on their servers automatically). For PC based image posting, I use imgur.com as it's easy to just drag files to the browser, then grab the links to embed here.