You are misjudging the website changes exclusively through the lens of your preferred method to access it, to the exclusion of all others. We do not have that luxury. The changes we are making adapt the individual pages to the device, viewport and orientation for each user on each page view. Some exclusively desktop users may not understand the necessity of that, but we do because more of our traffic occurs on mobile devices than on desktop, and a huge number of users use desktop, mobile browser and the mobile app - all of them. That's a simple factual reality, not a supposition. And the ratio of mobile to desktop is increasing, not staying static. It is not something we can ignore.
The example of mine that you just cited is a small device view - a mobile phone, in portrait orientation. it has the least amount of horizontal real estate of all the possibilities. That page on a mobile phones in landscape will look different. That page on pad (e.g., iPad) devices with even larger screens look different in both portrait and landscape mode. And desktop views will look different (have more content horizontally) than all of the above. And speaking of the example single message view, views by users with ads will be different from ad free, and premiums users will look different from free users, and posts on stock boards will look different from those on non-stock boards. And that's just the single message page. Hot board pages, Favorites, Mailboxes, the main board page, etc., will all have different layouts and content depending on some or all of those variables.
You guys. Take a look at this image of Ihub. This is where they are going with their financial site and the forums may not be the major factor, I don't know.
So, when you make the conclusory statements like that, the only correct part is that you don't know.