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Since we're at it, let me tell you: we also use localstorage, ip-based identification of your language, and tons of other scripts.
Why are we using these technologies? Because it helps us deliver a better serviice.
Do we spy on you? No. Do we profile you? Nope.
What do we do with the cookies? Not much really.
Why are the cookies there then? It's easier to warn you than to bother checking all the code that uses them.And yes, they make on-site purchases possible.