Never trust ANYBODY who requires a valid email address just to check if their service is available in location. Zip code alone will suffice. If they are OK with harvesting your email address (for spamming purposes I presume), what makes you think they have any scruples against spamming everyone.
I have advocated this for years. We should also tax corporations on market cap and individuals on net worth. Taxes based on how much money you have, not how much money you made.