Stop harassing me.

I play chess online through the website Gameknot. Once a week I get the following e-mail:

Notice from GameKnot: It appears you are blocking some or all of the advertising on GameKnot (banner ads, pop-ups, etc.). As you probably know, the free accounts on GameKnot are supported by paid ads -- in other words, the advertisers are paying for the server resources and bandwidth used by your account, for the programmers who add new features and improvements, for the support staff, etc. etc.. Since you have blocked ads on your computer, there is no one left to pay for your account, so unfortunately we will not be able to continue to provide you with the free services any longer. Please subscribe to a premium membership, or allow all ads to be shown on our website. Thank you for your understanding.

If I am blocking anything, it is not a conscious effort. I do use Firefox, so they could be blocking some stuff. However, I've added gameknot.com to my allowed sites for pop-ups. Yet, I still receive these messages on a regular basis. Not to mention, I do see the ads on the site. For instance, one ad informs me that if my site links to GameKnot, I could receive a premium membership for free! Wait, I just linked to Gameknot above. So give me a free membership and stop sending me stupid e-mails.

PS. If you are also on Gameknot, my handle is JabYerWocky. Challenge me to a game.