Personally I don't care if the " Asker " didn't ever bother to read the answer or say "thank you " as I am sure someday , someone will be searching the internet for his question and get my post which helps him , which makes me feel better , I go into this mind set especially when I am creating a video tut .
There is another type of people that makes me laugh , when they ask a question , you answer .. a few seconds they say they had a problem ..etc then after they get the final solution they never come back or say anything , so I know they just find the answer and move on ...
but there is a problem that happens to people without them meaning anything bad , which the "notify me of replies " is off by default , so someone might forgot to turn it on and thinks no one answered his question or replied to his post , this happened to me personally a few times , when I look at my posts I am like "Oh , there is 3 replies that I didn't know about !" usually I reply after that . so isn't it possible to turn the "notify " for the Topic poster by default ?