Came across a post by a friend only 2 months back but surprised to find that option to answer it was not there, Can anybody tell something?

?2017-09-28T07:48:41Z

Favorite Answer

Not sure but mostly old questions and all those for which best answer has already been chosen could be the ones having no further option for answering.

mayona2017-12-11T08:15:36Z

I can tell you that your question was answered 2 months ago and best answer was also awarded but my answer here is a proof that It still could be viewed on yahoo answers and it still has the option of being answered.

?2017-12-08T10:01:00Z

This question still showing up the option to answer even after best answer award and passage of 2 months.