Well I know full well I am in the minority, perhaps of just one, on this - but I could not care less whether I get a thankyou or not. I am here to help wherever I get the opportunity and if the poster does not give me a thankyou, that in no way lessens the fact that I KNOW I have helped and that is quite good enough for me. It is the posters own character which is being hurt by their not saying thanks and there is nothing I can do to change that.
People who ignore
Site Rules and do not put all their questions in one post is another matter, for me. Here it is not a matter of a simple thankyou but the fact that in the fast moving world of Q and P, questions tend to go off the first page very quickly and some of these may not get the answers they would have received had they stayed at the front that bit longer.
As for the star rating system, don't get me started! It is like being back at school trying to achieve a coloured star, or even, if very lucky, a silver or gold star. I left that childishness behind over 40 years ago! I try to help and if, in trying, I fail to answer a question to the complete satisfaction of the questioner, well I have done my best to help and that is all I can do. I certainly don't need a star or three to tell me how well someone else thinks I have done - I know I have done my best to help and that is enough for me.