Ctags / Cscope are very popular frameworks that are utilized in VIM. Should we allow questions regarding ctags/cscope ?
If the problem is with using ctags or cscope in Vim, sure. Exuberant Ctags - Duplicate tags problem is a good example: the discussion in the comments involve Vim configuration.
If the question is purely about ctags or cscope usage, without Vim entering the picture, then, of course, nope.
:helpgrep cscope yields 316 results and
:helpgrep ctags yields 189 result in my vim build. These programs seem to be important in vim, so 'we' should allow question on ctags/cscope