I find hard to comprehend how some people don't see those really obtrusive ads (flashing, overlay etc.) same as spam or other unsolicited product information li

I find hard to comprehend how some people don't see those really obtrusive ads (flashing, overlay etc.) same as spam or other unsolicited product information like flyers being put to your mailbox. And for former ones this is in many countries treated as felony or either way forbidden by law. Frequent contra argument to "I'm not influenced by ads so I'm not going to buy this stuff either way" is that it works on subliminal level, yada yada. And that's what's immoral, mildly brainwashing people.