I'am sure that there are lot's of people who just forget to hit the thank you but are none the less grateful for the file.
If the only reason somebody here is uploading files so they can see how many thank you's they can accumulate than they have done so for the wrong reason's and picked the wrong place
While it's frustrating at times thinking nobody is grateful it's just the way it was, the way it still is, and most likely to remain forever so after you uploaded take a second and pat yourself on the back and think I probably helped someone out of a jam and forget about it