No, This would make it harder to browse through each and actually find what you are looking for.
It will also look kind of messed up if you are just trading on e.g europe ladder softcore, and each time you refresh the page you will also need to refresh all the types of sub forums.
Also, Most of the traders does not need to "easily" browse through a hundred sub forums, since they are most likely just playing on one type of core, realm and ladder.
However, it would be nice to have a price check for each sub forum, just like it is in Ladder Slasher, for each trading ground on Diablo II.
That would make it much easier and much funnier to help people getting price checks
