It'd be interesting to do a tally. If you think criticism on this forum is only "occasional," including the often vehement and highly personal criticism of female athletes (have you not read the posts about Molly Seidel?), then you are either in significant denial, or aren't really aware of what goes on in the threads.
For Quigley, you can search your own forum for combinations of words like "quigley and horse," and on the thread announcing her signing with lululemon, you will find posts criticizing her "gummy smile" and making direct connections (with links to images) between her looks and a certain hoofed beast.
You will also find full posts saying, "Colleen has, BY FAR, the creepiest teeth in professional running. Wigs me out every time. Distracting, weird and unfortunate teeth. She should get those things fixed with that lululemon money. Peace, love, and orthodontia."
And another: "Since she has all this money though supposedly, she could stop posting all those junk Instagram partnerships for any product under the sun, def fix the teeth situation..."
That is a selection of posts on ONE THREAD about her signing a new endorsement deal, and it took me less than 30 seconds to find. And those are just the physical comments; I didn't even bother with the comments on her personality from people who don't know her personally. You want "page after page"? You can find it if you care; heck, every Seidel post is literally page after page of personalized abuse.