It is an annoying nuisance for almost all the recipients.
It gives all of us a bad name.
Spamming is illegal in most if not all jurisdictions and gives governments good cause to intervene online.
If we don’t care to keep the web clean, we will see massive government intervention and regulation. And we will see the general public applauding it. And there goes our freedom.
Some people just can’t see beyond their own nose.