I'm wondering if anything can be written in Terms & Conditions agreements and, if some rules apply, what are they (preferably in the EU)?
There's this famous South Park episode HUMANCENTiPAD where characters agree EULA without even reading them and end-up in a really bad, but legal, situation.
This example is of course exaggerated but let's say there's a Free Wifi somewhere and connecting to it shows me a page where I have to accept Terms and Conditions to be able to access the whole web.
Can they legally write some terms like spying on user's traffic, reading messages, save credentials for later use, etc.?
Or are these kinds of terms abusive, thus wouldn't legally be valid in such agreement?
If they're considered as abusive, where are the rules defined to flag a clause as such?
Thanks for your answer.