I agree it's not really insidious...I'm mainly annoyed by the spam emails.

 

I want to know about sales for stuff I've told them I'm interested in buying.

Or the regular company sales...

But I got 24 emails this morning each for a product I glanced at. That's ridicullous.

BUT, to take it a step further and putting on my foil hat..like I said, this is all from one specific vendor....So, for example, can 3DC look and see "Hmm Scav has been looking at my products. I have his email, I shall now start sending him emails. He's interested in my sci-fi stuff, so I shall use his email to sign him up for this sci-fi news letter I publish."

(NOTE: JUST AN EXAMPLE, i'm not suggesting vendor 3DC even has anything to do with this other than it being their products, not that Renderosity is providing my details to them).

Or to take it in a more nefarious way.. you browse to one of the more risque products in the market (or even click on by accident, as the recent -Warrior outfit is actually lingerie thing), and Renderosity gives your info to someone who fills your mail box with porn spam...

What data are they sharing..browsing history? emails? Credit cards?

Like I said, I'm more annoyed by the emails filling my mail box, but the further ramifications can be troubling.