Grandpaul, yes in earlier versions the photo was fixed and too large photos in width destroyed the layout for all posts within that thread.
No the software expose it to the size of your screen.. so it fits large / small computer screens and phones etc.
This applies to [IMG] bbcode tags only. Any images past the limit 1920 will not be parsed.
How many images are allowed to be inserted in a post. This applies to [IMG] bbcode tags only. Any images past the limit will not be parsed. The limit is set to 15 images.
For attachments the limit is set to 5 only with ea post. the max size in MB is 8MBx5=40MB, the software will reduce all attachments to 800px each automatically. This will reduce the MB size into KB's and voila the page is loadable..
hope I made it sort of clear.