About 8 years ago I wrote to the administrators and suggested that they update to a newer version of the forum software that worked with responsive web design.
In this way, the display on smaller screens could be much better = readable without zooming in on smartphones.
At the time (about 8 years ago) I got the answer that they couldn't see the need for that, and besides, they were quite satisfied with the software as it was.
This is an example of how, if you don't keep up (just a little) with the development, you will inevitably run into problems at one point or another.
Of course, I don't know if updating 8 years ago could have solved the current problem. But at least the situation couldn't be worse!
Jørgen