I am forced to do reCAPTCHA but no one else on the site is

On Discogs.com I am forced to do recaptcha every time I visit certain pages but in the site's forum other people say they never see recaptcha on the very same pages. They also say the decision is made by Google and not the site itself. Why is this happening and how do I make it stop? -- You received this message because you are subscribed to the Google Groups "reCAPTCHA" group. To unsubscribe from this group and stop receiving emails from it, send an email to recaptcha+unsubscribe@googlegroups.com. To post to this group, send email to recaptcha@googlegroups.com. Visit this group at http://bit.ly/1dkFnYd. For more options, visit http://bit.ly/P65DvS.