Well just so you know this is going to be a very frustrating fight. For one, if we want to implicate a food we need to observe the deleterious effects of its constituent nutrients. The main reason why soy oil is death is the massive linoleic acid content, so if we pile on the evidence that linoleic acid is bad we will have demonstrated that soy oil is bad, right? Unfortunately the usual infantile response to this approach is an accusation of "nutritionism" where I am taking the deleterious effects of linoleic acid in isolation apart from the "whole food" (yeah soy oil as a whole food, riiiiiiiiiiight). I mean it has some ALA, right? And those massive doses of phytoestrogens are supposedly so good, eh?

So the argument has to be built on the fact that linoleic acid is intrinsically deleterious and that ALA (or the 22 carbon DHA preferably) is obtainable through sources with less linoleic acid like fish and flax. The argument is then valid.

Points of contention: all polyunsaturated fats generate lipoperoxides. Look at Chris Masterjohn's article on PUFAs for that. (precious but perilous, or something to that effect)

Then we have the undeniable fact that linoleic acid is carcinogenic. It triggers gene expression in a cancer-proliferating manner

http://www.ncbi.nlm.nih.gov/pubmed/20616616 http://www.ncbi.nlm.nih.gov/pubmed/17134970 http://www.ncbi.nlm.nih.gov/pubmed/17607361

And some epidemiology to add a bit of weight. http://archinte.ama-assn.org/cgi/content/abstract/158/1/41

So obvious we want to use olive oil, not soy oil.

It is interesting that sometimes omega 6 has a "preventative" role in heart disease (although Masterjohn buries the notion on his blog). Gary Taubes explains in GCBC that it just increases cancer and you can't get heart disease if you get cancer.

It lowers HDL and uses valuable LDL.

Ray Peat has long long articles bashing PUFAs. He is a resource in himself http://raypeat.com/articles/articles/unsaturatedfats.shtml

An issue with omega 6 is that massive doses like are found in soy oil cause an omega 3 deficiency in the cells. That is a serious problem to anyone who doesn't like dying. Again, probably check with Chris. His blog is like a nutrition geek's treasure-trove and he hates vegetable oils, rightfully so. Another big problem with omega 6 is that it just sits around being a douchebag in our cells and interferes with thyroid signaling. Thyroid signaling! Yes, I hate being fat and tired, don't you? http://wholehealthsource.blogspot.com/2008/12/omega-6-linoleic-acid-suppresses.html

This is one of my favorite resources for documenting the effects of omega 6 fats in excess. They have clinical trials, epidemiology, case studies, tons of stuff. Mostly to do with the disequilibrium of fats in the cells but as we know you can't just slug fish oil all day long to try to keep up with your omega 6, since too much omega 3 is bad too. http://omega-6-omega-3-balance.omegaoptimize.com/ Just lots of studies.

All in all I think the best path isn't just to bash soy oil but vegetable oils in general, and soy is the most egregious offender.

This is pretty great: Importance of omega 6/3 ratio, Evolutionary aspects.

No link to throw down, but I've read some good stuff by Sally Fallon and Mary Enig on Soybean oil.

Dr. Bill Lands.

http://www.youtube.com/watch?v=dgU3cNppzO0&feature=related

in the meantime, heavily padding down the meat with napkins surely mitigates some of the problem, since there's a lot of excess juice on that steak? or does it not work that way