Fair enough. I haven't looked at Starting Strength. I do think Stronglifts is "good enough" for people just looking to get in reasonable shape, and I think there are "transaction costs" benefits to having a short free PDF and a routine that starts with low weights to learn form as opposed to a thorough book and getting professional instruction.
If you are going to do something with as high a potential for injury as powerlifting, drop $20 on SS. It spends pages on explanation and diagrams showing you exactly how to perform the lifts.
Start with stronglifts. I get the point of having a free pdf. After you've added 20-25lbs to the bar, go buy SS. It's worth it.
I agree, it is the biggest downfall of Starting Strength. It would be much more accessible if they just had a well organized library of video instructions for all the lifts the program uses. I find it hard to learn from a book...