Is it a big deal for you?

if you answer for the comment for your discussion that is encouraging the commenter if you not able to answer that never create any big impact on the commenter as its only the sharing context no one loss by this way.

I do not think you have to tell that as it will simply reduce your reputation level and it is the duty of the fellow mylotters to respond to your post! You can thank them for the response at the end of your comment!

I read the guidlines and you're not supposed to go through the responses and reply "Thank you".They want you to say other like a real conversation.I don't thank people because I respond the way the guidelines tells me to.If thye guidlines are violated they will delete the discussion or response,so I like to prevent them from doing that.

No it's not big deal for me. I don't say thanks always for response. I feel good when people response my discussion.

Well, its not necessary from time to time you have to say Thank you...if you feel like doing it every time its also nice otherwise theres no need to bother yourself doing so. Happy Lotting and God bless!

No it's not. And you don't have to do it - it's written in the FAQ