...When you have a subscription that allows 25/day for 30 days, isn't that a blatant invitation to stockpile?  What else is a subscription like that for? 

Not only is it an invitation, I think that it's implied that this is what a subscription is supposed to be used for. Buyers expect that it's fair and legal to download as many images as they can, every day of the length of the subscription.

I keep wondering if this part of the license is even enforceable, legally speaking. Seems like there are conflicting licenses at play here. The usual RF license always says that you can use the image any time, while this subscription provision puts an expiration date on an image. So this isn't exactly the RF license that buyers are used to. On top of that, there is conflicting information within the TS license itself. On the one hand, it says that "you can use images that you download multiple times for multiple projects," but then further down the page says that you can't stockpile, you can't even store images not used during the term of the subscription for future use. So besides being unclear, the license seems to contradict itself. Worse yet, the idea of "future use" seems to only apply if the image was initially used during the term of the subscription, and ceases to be a valid use license at the end of your subscription.

So let's say you download an image for a brochure. You use it immediately, and then a month later the client asks for a new design with the same image. As I understand the TS license, that usage is prohibited, despite the fact that part of the license suggests that this use would be allowed. Although it is unclear which part of the license would take precedence.

I'm thinking that at this point  few subscription buyers really understand  the rights and restrictions on images they buy, and buyers are ceasing to care.  Eventually people say "screw it, I don't know if I'm even totally legal on these images I actually paid money for, so why not just use these thousands of freebies that are floating around, everyone else is doing it anyway."

It's all way too complicated, vague and contradictory; it doesn't make sense. 

aye stockastic,
and neither does getting pennies for XL on the same day, with another paying 1.50, 2, etc.. for a M.
i see more XL downloads with 20-30 cents commissions then S and M,etc paying 1.50.
it doesn't make business sense... to contributors,
but to the sites,  it does