[james4k]

It has a global rate limiter AFAIK, so it's hit and miss depending on how much load it's under.

Edit: I was trying to datamine Steam several months ago as well, but the amount of data I needed really was unrealistic for this very reason, and it would have just been bad etiquette. I imagine by having this API they're having to deal with a ridiculous number of dataminers. And that's on top of their crazy number of normal users, which I'm sure the rate limiter is there to protect.

[kimagure]

Well, I really can't blame anyone but STEAM for this. They don't have APIs for anything other than stupid TF2/Dota2 things so it's no wonder that people scrape their pages every day.