you can see a lot of people that blog that have a big amount of SP and when you comment there is no response, nada, zilch, nothing...
I always feel a bit sad in the beginning but then indeed I just ignore them and certainly do not give them a vote.
Interaction is a big part of the game here and in the end might be the main reason why some people stick it out here and others do not. Because, lets face it, for the moment most do not do it for the actual income. I stay for the future income but if that was really the case I would just delegate and let it make passive income. I like the interaction even though I do not get where @tarazkp gets the inspiration and the time (I am starting to think they have a team at home and only one can go to Steemfest)