Cryptocurrency donations for bots, groups and channels
Show a button for sending quick donations to maintainers of bots, groups or channels using cryptocurrency. This could use either an established cryptocurrency like Bitcoin, Etherium, EOS, etc. – or some…
number does not "exist", then it can't be retrieved
The process of obtaining just a single bit of information about a Telegram user is pratically impossibile, it would require dozens of developed, free & safe countries (where Telegram's servers are located) to get together, modify their principles, deny freedom of speech and order Telegram to disclose users data. But yeah, of course there's a very tiny percentage chance of obtaining your data.
False. And I can simply fill it with false information
About IP address it's more complicated, let's say I'm at my university, that has only a public IP address, how can you say which was me if you only get the IP of the university?
Tracking you by your IP address is certainly easier than accessing Telegram's servers. Don't worry.
This has no connection to the proposal but only with "identity tracking" issue.
Using phone numbers is safer for various reasons and there are better algorithms there to prevent spam & fake accounts (i.e. certain phone numbers ranges are blocked). Let's say you got banned for sending spam, promoting violence, pornographic content or child porn — you could easily change your IP address, get a new email address and get back to your business on Telegram in just 5 minutes.
Also, Telegram values its disk space greatly: allowing users to sign up just using an email address would massively increase the user grow rate — probably more than 10 more times than the current one — and therefore it would require more servers & disk space.