Hi Austin , When you create a new thread , on your FIRST post there is a one chance option to upload a picture. There does not appear to be an option to do it on subsequent posts, or when you reply to other's posts or try to add pictures even when editing your first post of thread.
In order for people to view a picture that someone uploaded , you need to click on the file name , and open up the file in your Windows photo viewer on your own PC and possibly risk opening something that might contain malware threats. On Snappy's forum , if you are signed in the pictures are right there to see, and you have option to post pictures on replies and later postings.