I don't like the email registration at all... There should be a no-login way to track the coins. I mean, with the login, you could have your own sessions and your own address/transaction for tracking, but with the no-login version we should be able to input an address or transaction and do some tracking. Because this way, a lot of user who reach the service will walk away before creating an account, but if they have the chance to taste the service, then some of them will start creating their accounts.
Not really a suggestion, but you can however use a temp email to register if you wanna have a quick taste of it (without using your own mail).
Well, I did it. And it worked for me! The verification code does reaches the mailbox, and it only takes a few seconds to finish setting up everything.
You search the address you wanna take a look at, take what you need, the tracking stuff, and simply log out/clear data and whatnot! Note that, personal mail or tempmail, whatever you use doesn't matter, cause once you create a project, you cannot delete it (the last I checked I couldn't). The searched address (and it's content) remains saved in the database!