I think your browser is still caching some of the old content. Please try to refresh the page by pressing CTRL and F5 keys at the same time. See the attached image on how the new forum should look like on the desktop and mobile.
We had to make the change, as Google now removes websites from the search index if they don't comply with industry standards. We are now OK as you can see here:
https://www.google.ca/webmasters/tools/mobile-friendly/?url=http://www.chattanoogafishingforum.com
We did some testing with Moderators, but I agree, I should have announced it to the forum ahead of time. Will do so when implementing new changes (new message editor is coming)
Please see the attachments on how the forum looks on a desktop and mobile. If you see something else please press CTRL - F5 on the desktop, or follow those instructions for iPhone:
http://refreshyourcache.com/en/safari-mobile/
Anything specific you don't like on the mobile? The Forum/Posts should nicely fit within the borders of the screen without the need to do any horizontal scrolling. The font is also larger.