[Scottish] Not strictly linux, but advice welcomed all the same

[John Gordon Ollason]

I participate in a discussion board hosted in America. Yesterday, the sig  
line of one of the other participants fed me back my Internet address, the  
operating system, linux, the browser, Opera, I was using, and the company  
name of my ISP. The sig is provided free to anybody who would like to use  
it, by danasoft.com. They claim that they create the sig on the fly and  
feed it back only to the person that has downloaded the page, each person  
using the page sees only his own identity. The site peddles a piece of  
software which, they claim, will prevent the information from being  
transmitted, and it seems to me that the purpose of distributing this  
_cool_ sig to witless users is to promote the software they are selling to  
prevent the transmission of the data returned by their sig. They waffle on  
about privacy, but I am annoyed that another user of the discussion board  
is responsible for transmitting information about me to a third party  
without my permission. There is no guarantee that the information about me  
obtained by danasoft will not be passed on elsewhere.

Am I making a fuss about nothing? Is there any linux software that I can  
install that will prevent this behaviour?

Thanks for in advance for your thoughts.

John O.