I'm not sure if this has been mentioned before since I've never been to the forums, but I feel like this needs to be stated clearly somewhere in big, bold letters.

You can NOT hotlink from Pixiv! Links ending in .jpg or .png, or anything else, will NOT work.

When sourcing, please use the SUBMISSION link to source!

I love this booru site, but it's very frustrating to have to track down the source on practically every image I find because people can't link properly.

Just link to the artist. Hotlinking is really not needed.