[damienj]

The email address will be used if you create a free monitoring, to send you weekly digests and alerts in case of quality issue / slowdown on your monitored page. So yes, we reject temporary address as we don't want to analyze daily your webpage if you're not reading our e-mails.

[damienj]

Registering, we will be able to disable any email notification even before we send you any

[jknz]

What if I just want to see the blurred text?

[Karunamon]

Then just freakin' sign up already! With the amount of time you've spent typing these screeds, you could have registered, decided you didn't like it, and killed your account about 10 times over.

This is not helpful criticism in the least - most people don't object to sharing something as innocuous as an email considering they just did something nice for you.