I never thank somebody who faves me or somebody who puts one of my drawings into one of his or her collections. It's not that I don't care or appreciate the attention, it just feels that it is not the right thing to do. I follow many artists and I don't expect them to thank me every time I add one of their picture.
However, I make a point of responding to all the comments, positive or negative, made towards my "art", as long as they are made in a respectful way. If you like or hate what I do, if you have comments on my skills or technique, please, express yourselves.
So, I take this opportunity to thank everyone who has shown an interest in my "drawings", your remarks are a source of inspiration, they help me keep on going.