They have your number, don't they? Here's a little free insight ... I pay for my end of the link. You pay for your end of the link. They pay theirs. We pay ours.
But there is no "they pay mine". That's all Holland & tulips & the mid-1630s. My screen, my rules. Make it profitable for me to see marketing crap, and I'll allow you to use my fully paid for link, my pixels, my CPU, my memory, my disk and my electricity. Maybe.
Judging by my spam filter logs, junk email never went anywhere, not that my users and I ever see any of it. Or did you mean snailmail? That hasn't gone away, either (not that it has anything to do with TehIntraWebTubes). And the number of junk telephone calls is an order of magnitude higher than it was a couple decades ago (You said "prank" ... is that what you call all those junk calls from the sub-continent? They might be pranks, because those ass-clowns can't be serious ... but again, that has nothing to do with TehIntraWebTubes).
No, I'm not getting off the Internet. I helped build it, I know what it's for, and they can't have it. (Apologies to Russ for the paraphrase.)