I’ve used them in the past, too. One day I clicked on something and landed on a screen (I think a Google screen) saying to the effect of “Notice: Maxi Pixel is an illegal copy of Pixabay.com. Continue at your own risk.” I clicked away and never came back. They are the bad guys indeed. These days I just start with Pixabay directly. If I can’t find a goodie there, I search Google Images, but only use images from either Wikimedia Commons or Flickr. The original good guys! Thanks for this, Heath!