I have never understood what you find so difficult Andy, guess you've never tried. The number of images posted every day shows that those members don't have an issue.
Here it's a 24 hour limit of 3 pictures. Now this wasn't a restriction imposed by Admin, but at the request of members (see
this thread). Many wanted only 1 or 2 uploads. Admin thought this too restrictive so left it at three.
There's no reason why you can't start another discussion to see what the feelings are now on the restrictions.
I don't know what the Bird Guides limit is.