I've had an Ethereum address for 3 years and I just counted around 30 spam tokens attached to it. That's remarkably low considering how global and easy it is to send. I don't even want to imagine how many spam emails an unfiltered address would've gotten in that time span.
It's remarkably high, considering how few companies are using it.
Also, your checking your shitcoins, not your email. Blickchainers love sending out newsletters, aka, spam.