It's not just email address, I listed all required data for token sale sign up, none of them are optional. The required personal details are marked with an asterisk, they are:
- Country of residence
- Contact Email
- Full Name
- Postal Address
They specified that they will share data with advertisers and affiliates, current or future, and also upon government request, in addition to legal demand be it legislative or regulatory.
It's a matter of user discretion, I chose non participation, and thought I would share my reasons here. To each their own.
We need to collect this data for the sake of the token sale. This sale is regulated by ecommerce laws and hence forces use to collect this set of data. We need it only to establish a billing document and to calculate payment restrictions and VAT depending on where you live.
We do not collect any data for marketing purposes and will never do.
Yeah, but who's checking if the data is actually valid?
All they actually need is probably the E-Mail Address. Everything else is just required by law, but i doubt they are actually planning to send you an actual physical bill via snail mail.