I gave two answers (1st ans and 2nd ans) to two questions. But the askers did not response to it. Neither did they commented on it nor accepted it in both the cases. I answered them as I thought I could share my own view or I could give more references.
Somedays ago I was notified by a diamond moderator of SO, that if an answer has been posted to my question in SO, I should respond to it either by commenting on it or accepting it or come up with a good answer on my own that may be an ideal answer for my question. The moderator there was informed about me not responding to answers to my questions, because the answerers flagged my questions stating the aforesaid fact.
The same thing I think is applicable here. As the askers did not respond to my answers in anyway, they should be notified about the problem. I am looking forward to the moderators about taking necessary steps.