Welcome to WebmasterWorld Guest from 188.8.131.52
This background-installation inserts a "free" toolbar; the user does not appear to have the option [networkworld.com] of declinding installation. This toolbar seems to contain an apparently hidden copying utility which sends IP addresses, HTML coding, and other information to some third location [spywareinfoforum.com]. Users do not seem to be aware of this hidden activity (other than perhaps to wonder why browsing is now slower [notoverthehill.com], etc).
On the server side, thiis added bandwidth drain is viewed by some as being sufficiently bad as to rate as being a DDoS attack [markusallen.blogspot.com].
Naturally, the bandwidth expenses and domain slow-downs will vary from server to server, and only the webmaster can determine how much is "too much" for him. Not all may view this issue as being a "problem".
Those users may have decided to go to techethos' web site on their own or as a result of the suggestion. The "spying" has to do with reporting on the users' behavior. I'm still not sure why this is a problem for Techethos. Isn't more traffic a good thing, if it's real people with an interest in the site's topic?