Kalbert I agree with you 100 percent.
The information you would need is readily available for determining a offer. At the bottom of the main forum page there is a list of stats including number of members. Also the magazine provides the numbers for how many issues are sold , either by mail or retai once a year. The price of the magazine is on the front cover and also the subscription price.Ad rates are also available. Those numbers would provide a serious buyer enough info to determine a value. Figuring out ownship shouldn't be that difficult and contacting them should also be straightforward.
To ask the question here is just showboating.