How to change the output of the page "User"

Question

how to change the page output user
For example http://www.question2answer.org/qa/user/case42
show only the user question
IS NOT visible answers and comments

sorry for my bad english

Answer 1

change

qa-page-user.php    string № 235

$questions=qa_any_sort_by_date(array_merge($questions, $answerquestions, $commentquestions));

TO

$questions=qa_any_sort_by_date(array_merge($questions));