It is possible to disable post information for forum topics at /admin/themes/ settings (global settings). It is good to have this option, because in some contexts it make sense to have forum postings without username while other postings have usernames for identification.

But the forum information (rows) are organized in a way that usernames are still displayed (last post by ... , Created by ....) even with post information disabled.

Is there any solution for this problem.

Thanks