The process for correctly uploading and attributing Pixiv entries in danbooru is fairly unintuitive and very easy to misinterpret on several points, which... well, shows quite a bit given the amount of people, even Contributors, who completely mess it up, especially when it comes to what address to use as Source, and creating the Artist entry, which is sometimes completely skipped.
This isn't entirely the users fault. The posts detailing the correct methods are buried in the forum and simply do not exist in any of the help sections. Users can't really be blamed for not knowing how to do something they probably had no reason to believe should be done in any special manner. I myself messed up a bit even AFTER searching those posts since I misinterpreted some parts, and I was only aware that there was a specific method because there was a thread about it in the first page at that time.
tl;dr: Shouldn't there be at least a sticky detailing the correct procedure for this stuff in the first page? Mainly because I've already explained this to several people and I'm beginning to fear I'll seem like a pretentious asshole playing Mod.
Updated by 葉月