Recolouring a bunch of Pixels is Stealing. The people that edit the sprites claim the sprite to be theirs, when really they took a sprite from another artist and they recoloured it. Those people are considored art thieves. People don't want to see sprite edits, they wan't to see origonal pixels and real art. Not something made by someone that was taken by someone else.

I will tell you why people are mad at your sprites. They are made because you stole a sprite sheet from a sprite sheet, recoloured it and now claim it as yours! Try making an origonal pixel, or drawing a picture.