Just a thought here, but would it be possible/helpful to put a "Help" button on the home webpage... for instructions to post photos or web-links and how to edit post/reply content. Seems like many new users ask how to do all of the above items.
I put instructions together with some screen shots in MS Publisher and saved them as jpeg files. So if you would like to use these pictures to help people learning to use the site – feel free to do so. [I think I have all the steps correct... if not, I can go correct them and save them as a new picture and repost it to you.]