ccLarry responded to too many of those polls, and look what happened. Now we have a direct link to his inbox.
Personally, I don't mind getting spammed by music software vendors, as long as they don't sell their mailing lists to third parties. I don't need any sketchy drugs from China, not looking for a Russian mail-order bride, and have no money to give to any African royalty.
Whether or not I'll regret getting on SOS' mailing list remains to be seen. From their privacy policy:
SOS will never sell your personal data or share it with third parties without your full consent. Currently the only request for such consent is when you enter one of our competitions and we ask you to voluntarily opt‑in to receive marketing information from the competition prize sponsor. This is optional and you are not obliged to opt‑in.
That means if you opt in, you have given permission to do whatever they like with your information. Same as every other vendor you've accepted emails from.