+100 I REALLY agree with this. Limited quotes and a regular link would be fine, and if that means winding up with a dead link or a locked post later on, well, that's what happens on the internet, unfortunately. But there are pages on Fanlore that not only repost large parts of a post, or the post's comments, but also the link is to both a live HTML capture (I think that's what it is) AND a screenshot which effectively means the author has lost control of their post. Some people are going to argue that them's the breaks when you post in public, but that is very likely to have a chilling effect on fannish discussions if people realize that might be happening regularly to them.

Plus like tenlittlebullets already pointed out, there's doxxing and RL outing, not to mention harassment and stalking. Sometimes people, especially women, just need to lock all their online stuff down.