[Whitestrake]

I sign up with your website @ my website.

For example: [e-mail].

Nobody blocks dots in email addresses, although I have had some sites in the past email me using the first part of my email address as my name; it's amusing to open an email from example.com saying "Hi, example.com!"

[_0ffh]

Funny, that's exactly how I do it! One of the reasons is, I know who lost/leaked/sold my data when the spam starts coming in. (Of course today we also have haveibeenpwned.)